drm/nouveau/clk: Add support for NVAA/NVAC

Signed-off-by: Roy Spliet <rspliet@eclipso.eu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --cc drivers/gpu/drm/nouveau/Makefile
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/engine/device/nv50.c
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/include/subdev/clock.h
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/subdev/clock/nvaa.c
Simple merge