firmware-htc-memul: move firmware to device-specific subdirectory (MR 4745)

In mainline Linux these paths will be used, move the firmware packaging
there. By doing this we drop downstream support. Support could be
restored by adding some symlinks in a downstream-specific package if
required.

We also start squashing the firmware into .mbn format with pil-squasher.

For now we keep the files in _wififiles in their old location, I'm not
sure yet where they need to go since I didn't have wcnss working on
mainline yet.

device/testing/firmware-htc-memul/APKBUILD

 pkgname=firmware-htc-memul
 pkgver=1
-pkgrel=0
+pkgrel=1
 pkgdesc="Firmware for HTC One Mini 2"
-subpackages="$pkgname-adsp $pkgname-modem $pkgname-wcnss"
-url="https://postmarketos.org"
+subpackages="
+	$pkgname-adsp
+	$pkgname-modem
+	$pkgname-wcnss
+	"
+url="https://github.com/FairBlobs/memul-firmware"
 arch="armv7"
 license="proprietary"
+makedepends="pil-squasher"
 options="!check !strip !archcheck !tracedeps pmb:cross-native"
 
 # Sources
@@ -19,36 +24,39 @@ for _i in $_wififiles; do
 done
 builddir="$srcdir/memul-firmware-$_fw_commit"
 
+build() {
+	for i in *.mdt; do
+		pil-squasher "$(basename "$i" .mdt)".mbn "$i"
+	done
+}
+
 package() {
 	# parent package is empty
 	mkdir -p "$pkgdir"
 }
 
 adsp() {
-	pkgdesc="HTC One Mini 2 aDSP firmware"
+	pkgdesc="HTC One Mini 2 - ADSP firmware"
 
-	cd "$builddir"
-	for _i in adsp.*; do
-		install -Dm644 $_i "$subpkgdir"/lib/firmware/postmarketos/$_i
-	done
+	install -Dm644 "$builddir"/adsp.mbn -t \
+		"$subpkgdir/lib/firmware/qcom/msm8926/memul/"
 }
 
 modem() {
-	pkgdesc="HTC One Mini 2 modem firmware"
+	pkgdesc="HTC One Mini 2 - Modem firmware"
 
-	cd "$builddir"
-	for _i in modem.* mba.*; do
-		install -Dm644 $_i "$subpkgdir"/lib/firmware/postmarketos/$_i
-	done
+	install -Dm644 "$builddir"/mba.mbn -t \
+		"$subpkgdir/lib/firmware/qcom/msm8926/memul/"
+	install -Dm644 "$builddir"/modem.mbn -t \
+		"$subpkgdir/lib/firmware/qcom/msm8926/memul/"
 }
 
 wcnss() {
-	pkgdesc="HTC One Mini 2 Wireless Connectivity Subsystem (WCNSS) firmware"
+	pkgdesc="HTC One Mini 2 - WCNSS firmware"
 
+	install -Dm644 "$builddir"/wcnss.mbn -t \
+		"$subpkgdir/lib/firmware/qcom/msm8926/memul/"
 	cd "$builddir"
-	for _i in wcnss.*; do
-		install -Dm644 $_i "$subpkgdir"/lib/firmware/postmarketos/$_i
-	done
 	for _i in $_wififiles; do
 		install -Dm644 "$srcdir/$pkgname-$_dt_commit-$_i" \
 			"$subpkgdir/lib/firmware/postmarketos/wlan/prima/$_i"