ppc40x: add support for 3.8

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt@35734 3c298f89-4303-0410-b956-a3cf2f4a3e73
ppc44x: add support for 3.8

Compile tested only.

Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

git-svn-id: svn://svn.openwrt.org/openwrt@35735 3c298f89-4303-0410-b956-a3cf2f4a3e73