We now have KVM on PPC64 too and might get it on PPC32 as well, as soon
as someone writes it.

So let's enable KVM for PPC32 and PPC64 targets.
Signed-off-by: NAlexander Graf <agraf@suse.de>
Signed-off-by: NAnthony Liguori <aliguori@us.ibm.com>