powerpc: Add lq/stq emulation

Recent CPUs support quad word load and store instructions. Add
support to the alignment handler for them.

Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>

diff --cc arch/powerpc/include/asm/emulated_ops.h
Simple merge

diff --cc arch/powerpc/kernel/align.c
Simple merge

diff --cc arch/powerpc/kernel/traps.c
Simple merge