pine64-dontbeevil: move openrc scripts to subpackage (MR 5688)

device/testing/device-pine64-dontbeevil/APKBUILD

 # Reference: <https://postmarketos.org/devicepkg>
 pkgname=device-pine64-dontbeevil
 pkgver=1
-pkgrel=2
+pkgrel=3
 pkgdesc="PINE64 PinePhone Don't be evil devkit"
 url="https://postmarketos.org"
 license="MIT"
@@ -11,12 +11,12 @@ subpackages="
 	$pkgname-kernel-longts:kernel_longts
 	$pkgname-kernel-shortts:kernel_shortts
 	$pkgname-nonfree-firmware:nonfree_firmware
+	$pkgname-openrc
 	$pkgname-sensorfw
 	$pkgname-x11
 "
 depends="postmarketos-base u-boot-sunxi u-boot-tools ofono"
 makedepends="devicepkg-dev"
-install="$pkgname.post-install"
 source="
 	deviceinfo
 	modules-initfs
@@ -64,6 +64,13 @@ kernel_longts() {
 	devicepkg_subpackage_kernel $startdir $pkgname $subpkgname
 }
 
+openrc() {
+	install_if="$pkgname=$pkgver-r$pkgrel openrc"
+	install="$subpkgname.post-install"
+
+	mkdir -p "$subpkgdir"
+}
+
 sensorfw() {
 	install_if="$pkgname=$pkgver-r$pkgrel sensorfw"