kernel-ppc64 -> kernel-default

Starting with openSUSE 12.3, powerpc doesn't have special kernel flavor
anymore.

Signed-off-by: Dinar Valeev <dvaleev@suse.com>
Enable ppc64le architecture

Enable powerpc64le architecture, which is almost the same as powerpc64
but little endian

Signed-off-by: Dinar Valeev <dvaleev@suse.com>