xiaomi-aries: initial device support with MoKee kernel

The last merge request of this device was !168 (closed)

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

And I got a problem. 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

Photo of the device running Weston

device/device-xiaomi-aries/APKBUILD

+# Reference: <https://postmarketos.org/devicepkg>
+pkgname="device-xiaomi-aries"
+pkgdesc="Xiaomi Mi 2"
+pkgver=0.1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="armhf"
+options="!check !archcheck"
+depends="postmarketos-base linux-xiaomi-aries mkbootimg mesa-dri-swrast mdss-fb-init-hack"
+makedepends="devicepkg-dev"
+source="deviceinfo initfs-hook.sh"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	install -Dm644 "$srcdir"/initfs-hook.sh \
+		"$pkgdir"/etc/postmarketos-mkinitfs/hooks/00-${pkgname}.sh
+	devicepkg_package $startdir $pkgname
+}
+
+
+sha512sums="5fff1fdbd8303870bd7368ed3817f184bb28e0467af3a5efbd0ac471448d967cd4eab471af953eb0f01bff9bc2292aad75ff670b7f61b10ce1a4fab5bff93c2b  deviceinfo
+73d199fdf7eccc2041ea8fabecc8b833d845791d5e7740b9d8e81e8fb917a0db55958f8c0d5499142a5726cf1ee40d6eb0ca16f7dc160276354d940b5abeeedc  initfs-hook.sh"