oppo-find-7a: new device (Oppo Find 7a)

I only tested the usb network feature by ssh'ing in to the device.
Nothing else works yet.

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

device/device-oppo-find-7a/APKBUILD

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+# Reference: <https://postmarketos.org/devicepkg>
+pkgname="device-oppo-find-7a"
+pkgdesc="OPPO Find 7a"
+pkgver=0.1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="armv7"
+options="!check !archcheck"
+depends="postmarketos-base linux-oppo-find-7a mkbootimg mesa-dri-swrast"
+makedepends="devicepkg-dev"
+source="deviceinfo"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+}
+
+
+sha512sums="cf22482f1948c0c99c9d10cd28dbd12c9881c67266547e0271b9249c27c4cfb7d954797b11704dc3a6ece95ef15bbf45f34a659244226304ef0b264a2416c41e  deviceinfo"

device/device-oppo-find-7a/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="OPPO Find 7a"
+deviceinfo_manufacturer="OPPO"
+deviceinfo_codename="oppo-find-7a"
+deviceinfo_date=""
+deviceinfo_dtb=""
+deviceinfo_modules_initfs=""
+deviceinfo_arch="armv7"
+
+# Device related
+deviceinfo_keyboard="false"
+deviceinfo_external_storage="true"
+deviceinfo_screen_width="1080"
+deviceinfo_screen_height="1920"
+deviceinfo_dev_touchscreen=""
+deviceinfo_dev_touchscreen_calibration=""
+deviceinfo_dev_keyboard=""
+
+# Bootloader related
+deviceinfo_flash_method="fastboot"
+deviceinfo_kernel_cmdline="console=ttyHSL0,115200,n8 androidboot.hardware=qcom user_debug=31 msm_rtb.filter=0x3F ehci-hcd.park=3 buildvariant=userdebug"
+deviceinfo_generate_bootimg="true"
+deviceinfo_bootimg_qcdt="true"
+deviceinfo_flash_offset_base="0x00000000"
+deviceinfo_flash_offset_kernel="0x00008000"
+deviceinfo_flash_offset_ramdisk="0x02000000"
+deviceinfo_flash_offset_second="0x00f00000"
+deviceinfo_flash_offset_tags="0x01e00000"
+deviceinfo_flash_pagesize="2048"
+

device/linux-oppo-find-7a/APKBUILD

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+# Reference: <https://postmarketos.org/vendorkernel>
+# Kernel config based on: arch/arm/configs/lineageos_find7_defconfig
+
+pkgname="linux-oppo-find-7a"
+pkgver=3.4.113
+pkgrel=0
+pkgdesc="OPPO Find 7a kernel fork"
+arch="armv7"
+_carch="arm"
+_flavor="oppo-find-7a"
+url="https://kernel.org"
+license="GPL-2.0-only"
+options="!strip !check !tracedeps"
+makedepends="perl sed installkernel bash gmp-dev bc linux-headers elfutils-libelf devicepkg-dev dtbtool xz"
+
+# Compiler: latest GCC from Alpine
+HOSTCC="${CC:-gcc}"
+HOSTCC="${HOSTCC#${CROSS_COMPILE}}"
+
+# Source
+_repository="android_kernel_oppo_msm8974"
+_commit="60e8a8df2d253b053cdac10a0ffd196b7b9c3925"
+_config="config-${_flavor}.${arch}"
+source="
+	$pkgname-$_commit.tar.gz::https://github.com/LineageOS/${_repository}/archive/${_commit}.tar.gz
+	$_config
+	gcc7-give-up-on-ilog2-const-optimizations.patch
+	gcc8-fix-put-user.patch
+	kernel-use-the-gnu89-standard-explicitly.patch
+"
+builddir="$srcdir/${_repository}-${_commit}"
+
+prepare() {
+	default_prepare
+	downstreamkernel_prepare "$srcdir" "$builddir" "$_config" "$_carch" "$HOSTCC"
+}
+
+build() {
+	unset LDFLAGS
+	make ARCH="$_carch" CC="${CC:-gcc}" \
+		KBUILD_BUILD_VERSION="$((pkgrel + 1 ))-postmarketOS"
+
+	# Generate master DTB (deviceinfo_bootimg_qcdt)
+	dtbTool -s 2048 -p "scripts/dtc/" -o "arch/arm/boot/dt.img" "arch/arm/boot/"
+}
+
+package() {
+	# kernel.release
+	install -D "$builddir/include/config/kernel.release" \
+		"$pkgdir/usr/share/kernel/$_flavor/kernel.release"
+
+	# zImage (find the right one)
+	cd "$builddir/arch/$_carch/boot"
+	_target="$pkgdir/boot/vmlinuz-$_flavor"
+	for _zimg in zImage-dtb Image.gz-dtb *zImage Image; do
+		[ -e "$_zimg" ] || continue
+		msg "zImage found: $_zimg"
+		install -Dm644 "$_zimg" "$_target"
+		break
+	done
+	if ! [ -e "$_target" ]; then
+		error "Could not find zImage in $PWD!"
+		return 1
+	fi
+
+	# Master DTB (deviceinfo_bootimg_qcdt)
+	install -Dm644 "$builddir/arch/arm/boot/dt.img" \
+		"$pkgdir/boot/dt.img"
+}
+
+sha512sums="e3fa1f9ab51a2b6213b9abaa3bb5e010fd2c41e98f572022fcfff66f17fc3639e1b29184b923c437ab4ed3411feb7e5667303304600fac3e929793c10a16daa2  linux-oppo-find-7a-60e8a8df2d253b053cdac10a0ffd196b7b9c3925.tar.gz
+30134ad4cbd9cc3c906425847dbc095b4db37011e98d0c200bb7bd4fc8c6bb468f7537b2f77e542ae401c65c75feed9e16abde1d8d9787f83131684c5a52c8bc  config-oppo-find-7a.armv7
+77eba606a71eafb36c32e9c5fe5e77f5e4746caac292440d9fb720763d766074a964db1c12bc76fe583c5d1a5c864219c59941f5e53adad182dbc70bf2bc14a7  gcc7-give-up-on-ilog2-const-optimizations.patch
+197d40a214ada87fcb2dfc0ae4911704b9a93354b75179cd6b4aadbb627a37ec262cf516921c84a8b1806809b70a7b440cdc8310a4a55fca5d2c0baa988e3967  gcc8-fix-put-user.patch
+ad0182a483791fc88e058838bc331b2f04a75ba291e763767babdb815efadfc3b4fda97e69e2e3f00a426cabea088e35297a92bd287592597d1e309be68ee92c  kernel-use-the-gnu89-standard-explicitly.patch"

device/linux-oppo-find-7a/gcc7-give-up-on-ilog2-const-optimizations.patch

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+../../.shared-patches/linux/gcc7-give-up-on-ilog2-const-optimizations.patch

device/linux-oppo-find-7a/gcc8-fix-put-user.patch

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+../../.shared-patches/linux/gcc8-fix-put-user.patch

device/linux-oppo-find-7a/kernel-use-the-gnu89-standard-explicitly.patch

@@ -0,0 +1 @@
+../../.shared-patches/linux/kernel-use-the-gnu89-standard-explicitly.patch