google-stern: new device (MR 4091)

[ci:skip-build]: already built successfully in CI

device/testing/device-google-stern/APKBUILD

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+# Reference: <https://postmarketos.org/devicepkg>
+# Maintainer: Jenneron <jenneron@protonmail.com>
+pkgname=device-google-stern
+pkgdesc="ASUS Chromebook Flip CZ1"
+pkgver=1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="aarch64"
+options="!check !archcheck"
+depends="
+	alsa-ucm-conf-google-kukui
+	depthcharge-tools
+	linux-postmarketos-mediatek-mt8183
+	postmarketos-base
+	postmarketos-update-depthcharge-kernel
+	soc-mediatek-mt8183
+"
+makedepends="devicepkg-dev"
+source="deviceinfo"
+subpackages="$pkgname-nonfree-firmware:nonfree_firmware"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+}
+
+nonfree_firmware() {
+	pkgdesc="WiFi/BT firmware"
+	depends="linux-firmware-ath10k linux-firmware-qca linux-firmware-mediatek"
+	mkdir "$subpkgdir"
+}
+
+sha512sums="
+b9ab043cd23ab5e3f005937137d78664fa91587cb948648119fa0999aaad361e09edfb4edf842ee8427a388c95ce4fcb4d6e05f92937807edddd68b9bba3180b  deviceinfo
+"

device/testing/device-google-stern/deviceinfo

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+# Reference: <https://postmarketos.org/deviceinfo>
+# Please use double quotes only. You can source this file in shell
+# scripts.
+
+deviceinfo_format_version="0"
+deviceinfo_name="ASUS Chromebook Flip CZ1"
+deviceinfo_manufacturer="ASUS"
+deviceinfo_codename="google-stern"
+deviceinfo_year="2021"
+deviceinfo_dtb="mediatek/mt8183-kukui-jacuzzi-stern mediatek/mt8183-kukui-jacuzzi-stern-rev3"
+deviceinfo_modules_initfs="gpu-sched i2c-hid-of cros-ec-keyb sbs-battery"
+deviceinfo_arch="aarch64"
+
+# Device related
+deviceinfo_chassis="tablet"
+deviceinfo_keyboard="true"
+deviceinfo_external_storage="true"
+deviceinfo_screen_width="1920"
+deviceinfo_screen_height="1200"
+deviceinfo_gpu_accelerated="true"
+
+# Bootloader related
+deviceinfo_kernel_cmdline="console=null"
+deviceinfo_flash_method="none"
+deviceinfo_cgpt_kpart="/boot/vmlinuz.kpart"
+deviceinfo_cgpt_kpart_start="8192"
+deviceinfo_cgpt_kpart_size="65536"
+deviceinfo_depthcharge_board="stern"
+deviceinfo_generate_depthcharge_image="true"