Runs an only slightly patched mainline kernel.

For now:
- flashing works (only SD card boot and kernel flashing tested)
- boots
- screen works
- keyboard works
- touch works
- accelerated Xorg works (OGL not tested, xf86-video-tegra works,
  but sometims X crashes with invalid instruction error - open top menus in
  Xfce file manager to reproduce)
- SD card works (troubles with GPIO insertion detection)
- USB should work, not tested
- WiFi should work, also not tested (a lot of warnings during boot)
- Sound needs configuration
- battery needs kernel driver (max8922/max8907c)
- touchkey doesn't work - very strange hardware here...
- cameras don't work - no DT bindings, but all drivers there

Other functionality is broken/not tested.

[skip ci]: already built successfully in CI

Alpine Linux has updated their main/icu to 63.1, which means we have to
rebuild some of our packages too.

[skip ci]: simple pkgrel bumps, building won't finish in CI

Fails to build for armhf with the error below, and doesn't seem to be
tested on anything but x86_64 anyway according to the project's
README.md file. I did not report this upstream, because we are using
the version from Purism's repository that is at 1.2.31. Upstream is
already at 1.2.68, which may have fixed this already. So if somebody
needs to have it working for anything other than x86_64, we should try
the upstream version first.

[ 83%] Creating preprocessed clst file /home/pmos/build/src/mfgtools-uuu_1.2.31/uuu/gen/emmc_burn_all.clst
gen_txt_include.sh: applet not found
make[2]: *** [uuu/CMakeFiles/uuu.dir/build.make:63: uuu/gen/uuu.clst] Error 127
make[2]: *** Waiting for unfinished jobs....
gen_txt_include.sh: applet not found
make[2]: *** [uuu/CMakeFiles/uuu.dir/build.make:68: uuu/gen/emmc_burn_loader.clst] Error 127
gen_txt_include.sh: applet not found
gen_txt_include.shmake[2]: *** [uuu/CMakeFiles/uuu.dir/build.make:73: uuu/gen/emmc_burn_all.clst] Error 127
: applet not found
make[2]: *** [uuu/CMakeFiles/uuu.dir/build.make:93: uuu/gen/sd_burn_all.clst] Error 127
make[1]: *** [CMakeFiles/Makefile2:184: uuu/CMakeFiles/uuu.dir/all] Error 2
make[1]: *** Waiting for unfinished jobs....
[ 83%] Built target uuc
make: *** [Makefile:130: all] Error 2

This is a flasher tool used by the Librem5 devkit and most likely other
future NXP-based devices.

ConfigFS expects idVendor and idProduct values to be prefixed with 0x.

Without this change, google-crosshatch shows as a device with 0:0 as the
idVendor/idProduct in lsusb:

Bus 001 Device 004: ID 0000:0000

This confuses VirtualBox: it has trouble detaching this device from
a virtual machine, so one must manually use ifconfig to bring down the
old USB network connection before reattaching.

With this change, the idVendor/idProduct is correct:

Bus 001 Device 004: ID 18d1:d001 Google Inc.

This issue also seems to affect other devices with ConfigFS, such as the
Nexus 5:

https://matrix.to/#/!clcCCNrLZYwdfNqkkR:disroot.org/$15487159511194991apGpy:matrix.org

This MR removes the Roccat mouse drivers that I added before when I was
testing my mouse.

[skip ci]: already built in CI successfully

[skip ci]: already successfully built in CI

This only changes devices that use devicepkg-dev (see #8)

[skip ci]: too many packages have changed

Add firmware required to make WiFi work. Patch the kernel so the ramoops
dmesgs can be read properly without having to remove that header every
time.

[skip ci]: already built successfully in CI

This patch fixes Xorg. Adapted from the Xiaomi A1.

[skip ci]: already built successfully in CI

USB host mode is useful (essential?) on the devkit for adding a
keyboard/mouse to interact with the desktop since the onboard display
and touchscreen are very much in flux.

[skip ci]: already built successfully in CI

This is useful for dumping device registers when mainlining.

[skip ci]: takes longer than 1h to build, ollieparanoid made sure that
           it builds locally.

The LineageOS kernel integrates the Wi-Fi driver, so reconfigure with
the Lineage defconfig and copy the Wi-Fi options over to our defconfig.

This doesn't get Wi-Fi working yet, but it gives a good starting point.

This program allows users to configure Qt5 settings (theme, font, icons,
etc.) under DE/WM without Qt integration.

Otherwise kwin can't register it's services.

Do not replace compiler-gcc.h. This is necessary now, as we are
replacing compiler-gcc.h by default again, as it is needed for most
kernels. Not increasing the pkgrel to avoid unnecessary rebuild, I have
verified that this works.

NOTE: in the last commit message, I wrote about OVERWRITE_GCC=0. But
the variable is called REPLACE_GCC, as I've decided to rename it before
submitting. I forgot to change it in the commit message.

[skip ci]: this kernel takes more than one hour to build, so it won't
           finish in CI.

Instead of never overwriting compiler-gcc.h if it exists, overwrite it
by default except if OVERWRITE_GCCH=0 is set in the environment.

Most kernels *do* need this file replaced and won't build without this
patch.

Adds an initfs-hook to enable touchscreen on motorola-athene.

Signed-off-by: Claudio Maggioni (maggicl) <cmaggioni@keemail.me>

[skip ci]: already build successfully in CI

[skip ci]: already built successfully in CI

This modernizes the APKBUILD that was based from outdated one (still
needs GCC6) as requested in !165 (comment 133993271). Also adds a fix
to allow Xorg booting, osk-sdl doesn't work yet as it throws some ugly
faults in kernel related to fbcon.

[skip ci]: already built successfully in CI

I made a firmware package APKBUILD based on the motorola-titan and added
it to the device-motorola-cedric APKBUILD.

[skip ci]: build takes pretty long, at least the download timed out
in CI last time. ollieparanoid made sure that this builds before
merging.

At least one newer kernel already includes the compiler support split
stuff, so don't overwrite it if it already exists.

Support generating the aarch64 legacy uboot initrd files, not only the
armhf version. Use deviceinfo_arch to choose the right arch.

Tested on sony-amami with TWRP 3.0.2.

[skip ci]: this compiled in CI before, no need to run again.

The 5.0 kernel now includes -Werror= parameters in the makefile, this
changes downstreamkernel_prepare.sh to support them. Without this, the
script will replace, for example, -Werror=blah with =blah, which causes
the kernel compilation to fail.

More information and screenshots in the GitLab project:
https://gitlab.com/cubocore

[skip ci]: ollieparanoid made sure this builds for x86_64, armhf,
           aarch64, armv7.

Finally got display working, but it's based on MoKee kernel which is
also hosted on GitHub by community. So what works:

* USB Networking
* Flashing
* Touchscreen
* Display
* Weston with Xwayland

The device boots and shows the splash screen properly, after about 3
sec the screen went black. I had to
"echo 127 > /sys/devices/i2c-0/0-0038/leds/lm3530-backlight/brightness"
to make the backlight work, even though the value of it was already
127.

[skip ci]: this was built successfully in CI already