pine-a64lts: add wifi and bluetooth firmware (!153)

Add firmware-rtl8723bt package and Pine wifi and bluetooth firmware
subpackage.

[skip ci]: ollieparanoid will build this MR manually before merging, it
will probably not finish CI within one hour.

device/device-pine-a64lts/APKBUILD

 # Reference: <https://postmarketos.org/devicepkg>
 pkgname="device-pine-a64lts"
 pkgdesc="PINE A64-LTS"
-pkgver=0.1
-pkgrel=4
+pkgver=0.2
+pkgrel=0
 url="https://postmarketos.org"
 license="MIT"
 arch="aarch64"
 options="!check !archcheck"
+subpackages="$pkgname-nonfree-firmware:nonfree_firmware"
 depends="postmarketos-base linux-postmarketos-allwinner mesa-dri-swrast u-boot-pine64 uboot-tools"
 makedepends="devicepkg-dev"
 source="
@@ -23,7 +24,12 @@ package() {
 	devicepkg_package $startdir $pkgname
 	install -D -m644 "$srcdir"/boot.scr \
 		"$pkgdir"/boot/boot.scr
+}
 
+nonfree_firmware() {
+	pkgdesc="Wifi and Bluetooth firmware"
+	depends="linux-firmware-rtlwifi linux-firmware-rtl_bt firmware-rtl8723bt"
+	mkdir "$subpkgdir"
 }
 
 sha512sums="b550ace9ce15ad574d011d1e966bd040a93a8bf26980b61928059d6328f1b4b7ef7d12e90e6ac78c7b6e4b99c4924b0d49f3b5813f9275c3982ff9df2be7ffef  deviceinfo

firmware/firmware-rtl8723bt/APKBUILD

+pkgname=firmware-rtl8723bt
+pkgver=0_git20181104
+pkgrel=0
+pkgdesc="Firmware for rtl8723bs and rtl8723cs"
+url="https://github.com/anarsoul/rtl8723bt-firmware/"
+arch="aarch64"
+license="proprietary"
+options="!check !strip !archcheck"
+_commit=39da5959deff5041160fa85e62dddb89066471b3
+source="$pkgname-$_commit.tar.gz::https://github.com/anarsoul/rtl8723bt-firmware/archive/$_commit.tar.gz"
+
+package() {
+	cd "$srcdir"/rtl8723bt-firmware-$_commit
+	mkdir -p "$pkgdir"/lib/firmware
+	cp -r rtl_bt "$pkgdir"/lib/firmware
+}
+
+sha512sums="8c25196e68eca60e9c14d77a472335187706b1fa0a98da8b3c5afd4d08ea8d430b0ae3187080901bd6917531914096b18fe7e69c048a05140d44cd8689c941fb  firmware-rtl8723bt-39da5959deff5041160fa85e62dddb89066471b3.tar.gz"

main/linux-postmarketos-allwinner/APKBUILD

@@ -177,4 +177,4 @@ dev() {
 	fi
 }
 sha512sums="c8df91d946f0121f38992bddf4691b9fb999162424461c063851a685cae8329a1fc5a6add73100be197f899b6ccdb18faff2480161f5d24ce8996f35881e30fb  linux-585a14815d2a2620c2b673d26147ceb4491dbf65.tar.gz
-b5a72a1b369f38b33adf1921292fc62ae15ddd13e7fabbd51fd2f31d9daa5db4b823c2f09209d527b95c2f2592a036c4c13c2e2584a851c5f405a61cdfa44fdd  config-postmarketos-allwinner.aarch64"
+2a92dcf0851eb08718d6a1a20210a5efd8ba4747be0e0cedb0fb5f5f64efd3ef3d5b1e05e1ba87385c76a192c55ea266cd2fd133e860d6db227d7650c3972a1a  config-postmarketos-allwinner.aarch64"