linux-purism-librem5: build led-pattern driver into kernel (MR 2043)

There's a race condition between when the pwmled device is initialized,
which kicks off a feedbackd udev rule that configures the led trigger to
'pattern', and when ledtrig_pattern actually loads. It seems to mostly
load after the rule runs, so the trigger is never set to 'pattern' on
boot.

This removes the race by building the ledtrig_pattern driver into the
kernel.

[ci:skip-build] Already build successfully in CI

device/community/linux-purism-librem5/APKBUILD

@@ -2,7 +2,7 @@
 # Maintainer:  Clayton Craft <clayton@craftyguy.net>
 pkgname=linux-purism-librem5
 pkgver=5.11.4
-pkgrel=2
+pkgrel=3
 _purismrel=1
 # <kernel ver>.<purism kernel release>
 _purismver=${pkgver}pureos$_purismrel
@@ -79,4 +79,4 @@ sha512sums="d2e0f49403413f581aee6e47e021cb04fc003fbf821349c188a0c6a57561ba702c32
 5baae99010bde62e253fdd56f21ba096c217ba2ab9c367c80b34bc0f445a79a8fb8b5d14682f71ad6061d73c81fc16a608f4be037d792978dbbaf74267844260  0001-Revert-arm64-dts-librem5-Drop-separte-DP-device-tree.patch
 1a12f74895b0fc710792e3881f23754a8eb92d25b11a2751db007a1b08f72729043d1e824096c97dc795b8e33300274887b428997ddaacf4b61f52ef3bd78ce5  0002-bq25890_charger-enter-ship-mode-on-power-off.patch
 00286a7ea3d3167150eca1025f271bb76e05d8a47c481879b1322ec9e88250c365b1b0ddcc8140ccc9b8f6138ffec843f184645c0c7d4ff11f75c988f5c4945c  0003-Revert-redpine-Clean-up-loop-in-the-interrupt-handler.patch
-d27cc078f49563fa935d104846017c9ba28e859d5231d202c68b6438e25f381747206fe0be86d323bd50dc457e67b02a52eb60a845c35bd33d7f2367893781d2  config-purism-librem5.aarch64"
+07ce9dfb837e8a1ae10bc0edbbca107a3b12a2e5e2935fa9a1aa24c8f31e3c564685f2cb4a7b231960bdc666bcead1a946645ec7615b985d5c3d0cf6babaf098  config-purism-librem5.aarch64"

device/community/linux-purism-librem5/config-purism-librem5.aarch64

@@ -2,10 +2,10 @@
 # Automatically generated file; DO NOT EDIT.
 # Linux/arm64 5.11.4 Kernel Configuration
 #
-CONFIG_CC_VERSION_TEXT="aarch64-alpine-linux-musl-gcc (Alpine 10.2.1_pre1) 10.2.1 20201203"
+CONFIG_CC_VERSION_TEXT="aarch64-alpine-linux-musl-gcc (Alpine 10.2.1_git20210318) 10.2.1 20210318"
 CONFIG_CC_IS_GCC=y
 CONFIG_GCC_VERSION=100201
-CONFIG_LD_VERSION=235010000
+CONFIG_LD_VERSION=235020000
 CONFIG_CLANG_VERSION=0
 CONFIG_LLD_VERSION=0
 CONFIG_CC_HAS_ASM_GOTO=y
@@ -4805,7 +4805,7 @@ CONFIG_LEDS_TRIGGER_TRANSIENT=m
 CONFIG_LEDS_TRIGGER_CAMERA=m
 CONFIG_LEDS_TRIGGER_PANIC=y
 CONFIG_LEDS_TRIGGER_NETDEV=m
-CONFIG_LEDS_TRIGGER_PATTERN=m
+CONFIG_LEDS_TRIGGER_PATTERN=y
 CONFIG_LEDS_TRIGGER_AUDIO=m
 # CONFIG_ACCESSIBILITY is not set
 # CONFIG_INFINIBAND is not set