KVM: PPC: Book3S PR: Expose TM registers

POWER8 introduces transactional memory which brings along a number of new
registers and MSR bits.

Implementing all of those is a pretty big headache, so for now let's at least
emulate enough to make Linux's context switching code happy.

Signed-off-by: Alexander Graf <agraf@suse.de>

diff --cc arch/powerpc/kvm/book3s_emulate.c
Simple merge

diff --cc arch/powerpc/kvm/book3s_pr.c
Simple merge