device-oneplus-enchilada: Reuse hexagonrpcd config on systemd (MR 6147)

By sharing the config file and making the systemd unit files match the
openRC ones as close as possible.

Also fix the q6voiced.conf path while on it.

Co-authored-by: Clayton Craft <clayton@craftyguy.net>

device/community/device-oneplus-enchilada/APKBUILD

@@ -4,7 +4,7 @@
 pkgname=device-oneplus-enchilada
 pkgdesc="OnePlus 6"
 pkgver=14
-pkgrel=4
+pkgrel=5
 url="https://postmarketos.org"
 license="MIT"
 arch="aarch64"
@@ -44,16 +44,17 @@ package() {
 		"$pkgdir"/etc/unl0kr.conf.d/10-unl0kr.conf
 	install -Dm644 "$srcdir"/81-libssc-oneplus-enchilada.rules \
 		-t "$pkgdir"/usr/lib/udev/rules.d/
-	install -Dm644 q6voiced.conf \
+	install -Dm644 "$srcdir"/q6voiced.conf \
 		"$pkgdir"/etc/conf.d/q6voiced
+	install -Dm644 "$srcdir"/hexagonrpcd.confd \
+		"$pkgdir"/etc/conf.d/hexagonrpcd-sdsp
 }
 
 openrc() {
 	install_if="$pkgname=$pkgver-r$pkgrel openrc"
 	replaces="hexagonrpcd-openrc $pkgname-nonfree-firmware-openrc"
 	install="$subpkgname.post-install $subpkgname.post-upgrade"
-
-	install -Dm644 "$srcdir"/hexagonrpcd.confd "$subpkgdir"/etc/conf.d/hexagonrpcd-sdsp
+	mkdir -p "$subpkgdir"
 }
 
 pmtest() {