samsung-on7xelte: new mainline port (MR 4980)

This port is based on the linux-postmarketos-exynos7870 kernel.

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

device/testing/device-samsung-on7xelte/APKBUILD

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+# Reference: <https://postmarketos.org/devicepkg>
+pkgname=device-samsung-on7xelte
+pkgdesc="Samsung Galaxy J7 Prime"
+pkgver=1
+pkgrel=0
+url="https://postmarketos.org"
+license="MIT"
+arch="aarch64"
+options="!check !archcheck"
+depends="
+	dtbtool-exynos
+	linux-postmarketos-exynos7870
+	mesa-dri-simpledrm
+	mkbootimg
+	postmarketos-base
+"
+makedepends="devicepkg-dev"
+source="deviceinfo"
+subpackages="$pkgname-nonfree-firmware:nonfree_firmware"
+
+build() {
+	devicepkg_build $startdir $pkgname
+}
+
+package() {
+	devicepkg_package $startdir $pkgname
+}
+
+nonfree_firmware() {
+	pkgdesc="Proprietary firmware blobs for $pkgdesc"
+	depends="firmware-samsung-on7xelte"
+	mkdir "$subpkgdir"
+}
+
+sha512sums="
+78d6cd235ba284259ff26358b0b45a9f19d6d5e55fa3b46a2a1edd535dcfa717f0ea297a5dcd86bea03ddf001bce54b0c4c679108787d30573f7e00e66e503eb  deviceinfo
+"

device/testing/device-samsung-on7xelte/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="Samsung Galaxy J7 Prime"
+deviceinfo_manufacturer="Samsung"
+deviceinfo_codename="samsung-on7xelte"
+deviceinfo_year="2016"
+deviceinfo_arch="aarch64"
+
+# Device related
+deviceinfo_chassis="handset"
+deviceinfo_keyboard="false"
+deviceinfo_external_storage="true"
+deviceinfo_screen_width="1080"
+deviceinfo_screen_height="1920"
+deviceinfo_gpu_accelerated="true"
+
+# Bootloader related
+deviceinfo_flash_method="heimdall-bootimg"
+deviceinfo_generate_bootimg="true"
+deviceinfo_bootimg_qcdt="true"
+deviceinfo_bootimg_qcdt_type="exynos"
+deviceinfo_bootimg_mtk_mkimage="false"
+deviceinfo_bootimg_dtb_second="false"
+deviceinfo_flash_pagesize="2048"
+deviceinfo_flash_sparse="true"
+deviceinfo_flash_sparse_samsung_format="1"
+deviceinfo_flash_offset_base="0x10000000"
+deviceinfo_flash_offset_kernel="0x00008000"
+deviceinfo_flash_offset_ramdisk="0x01000000"
+deviceinfo_flash_offset_second="0x00f00000"
+deviceinfo_flash_offset_tags="0x00000100"
+deviceinfo_flash_heimdall_partition_kernel="BOOT"
+deviceinfo_flash_heimdall_partition_system="USERDATA"
+
+# Kernel related
+deviceinfo_dtb="exynos/exynos7870-on7xelte"

device/testing/firmware-samsung-on7xelte/APKBUILD

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+# Reference: <https://postmarketos.org/devicepkg>
+pkgname=firmware-samsung-on7xelte
+pkgver=2
+pkgrel=0
+pkgdesc="Proprietary firmware blobs for Samsung Galaxy J7 Prime"
+url="https://gitlab.com/exynos7870-mainline/firmware"
+arch="aarch64"
+license="proprietary"
+options="!check !strip !archcheck !spdx !tracedeps pmb:cross-native"
+
+_device="on7xelte"
+_commit="b89cec942fe297ff8623dd87e92f1a2380ed68f8"
+
+source="$url/-/archive/$_commit/firmware-$_commit.tar.gz"
+
+package() {
+	# Bluetooth firmware (Broadcomm BCM43430A1)
+	install -Dm644 "$srcdir/firmware-$_commit/$_device/bluetooth_bcm.hcd" \
+		"$pkgdir"/lib/firmware/postmarketos/brcm/"BCM43430A1.hcd"
+
+	# Wi-Fi SDIO firmware (Broadcom BCM43430A1)
+	install -Dm644 "$srcdir/firmware-$_commit/$_device/wlansdio_bcm.bin" \
+		"$pkgdir"/lib/firmware/postmarketos/brcm/"brcmfmac43430-sdio.bin"
+	install -Dm644 "$srcdir/firmware-$_commit/$_device/wlansdio_bcm.txt" \
+		"$pkgdir"/lib/firmware/postmarketos/brcm/"brcmfmac43430-sdio.txt"
+}
+sha512sums="
+ea9b18d5f1a7020fe59878191f30dcdeda17e9853066b94247443c55fc15801fc818a1bc0d909bebe007940c70e3d1bd4b7fb0b5725a1d424aedaabbccd44f36  firmware-b89cec942fe297ff8623dd87e92f1a2380ed68f8.tar.gz
+"