linux: explicitly depend on dracut and linux-firmware-{amd,network}.

The linux-firmware pkg contains some rare firmware files that probably
90% of our users don't use and it takes 20MB, so avoid the dependency.

srcpkgs/linux/template

@@ -1,7 +1,7 @@
 # Template file for 'linux'
 pkgname=linux
 version=3.14
-revision=2
+revision=3
 build_style=meta
 homepage="http://www.voidlinux.eu/"
 short_desc="Linux kernel meta package"
@@ -10,8 +10,8 @@ license="Public domain"
 
 case "$XBPS_TARGET_MACHINE" in
 	i686*|x86_64*)
-		makedepends="linux3.14 linux-firmware dracut"
-		depends="linux3.14"
+		makedepends="linux3.14 linux-firmware-amd linux-firmware-network dracut"
+		depends="${makedepends}"
 		_depends_headers="linux3.14-headers"
 		;;
 	*) msg_error "${pkgname}-${version}: unsupported target machine.\n";;