libvpx: rename subpackages to libvpx6-*

srcpkgs/libvpx6/template

@@ -4,7 +4,7 @@
 pkgname=libvpx6
 reverts="1.10.0_1"
 version=1.9.0
-revision=2
+revision=3
 wrksrc=libvpx-${version}
 hostmakedepends="perl yasm"
 short_desc="VP8 and VP9 video codec"
@@ -44,14 +44,14 @@ do_install() {
 	vlicense LICENSE
 }
 
-libvpx-tools_package() {
+libvpx6-tools_package() {
 	short_desc+=" - tools"
 	pkg_install() {
 		vmove usr/bin
 	}
 }
 
-libvpx-devel_package() {
+libvpx6-devel_package() {
 	depends="libvpx6>=${version}_${revision}"
 	short_desc+=" - development files"
 	pkg_install() {