linux-firmware: move Raspberry Pi firmware files to rpi-firmware-network

Now that linux-firmware-network provides the necessary wifi blobs for
the Raspberry Pi, we can remove them from rpi-firmware and provided them
in a new rpi-firmware-network subpackage.

The linux-firmware-network subpackage is modified so that only the brcm
not related to the Raspberry Pi is included.

srcpkgs/linux-firmware/template

@@ -1,7 +1,7 @@
 # Template file for 'linux-firmware'
 pkgname=linux-firmware
 version=20200918
-revision=1
+revision=2
 depends="${pkgname}-amd-${version}_${revision} ${pkgname}-network-${version}_${revision}"
 short_desc="Binary firmware blobs for the Linux kernel"
 maintainer="Orphaned <orphan@voidlinux.org>"
@@ -12,6 +12,9 @@ checksum=3cbb7f363dc63686b1c6e325ed679f6faa4715f17fa06be11b705456e1d5dcb9
 python_version=3
 nostrip=yes
 
+subpackages="rpi-firmware-network linux-firmware-amd linux-firmware-intel
+ linux-firmware-nvidia linux-firmware-network"
+
 do_install() {
 	vmkdir usr/lib/firmware
 	vmkdir usr/share/licenses/${pkgname}
@@ -53,6 +56,7 @@ linux-firmware-nvidia_package() {
 
 linux-firmware-network_package() {
 	short_desc+=" - network"
+	depends="rpi-firmware-network"
 	nostrip=yes
 	pkg_install() {
 		vmove usr/lib/firmware/3com
@@ -75,3 +79,11 @@ linux-firmware-network_package() {
 		vmove usr/lib/firmware/dpaa2
 	}
 }
+
+rpi-firmware-network_package() {
+	short_desc+=" - Raspberry Pi"
+	nostrip=yes
+	pkg_install() {
+		vmove "usr/lib/firmware/brcm/brcmfmac434??-sdio.*"
+	}
+}

srcpkgs/rpi-firmware-network

@@ -0,0 +1 @@
+linux-firmware