drm/nouveau/pwr: have rd/wr32 routines clobber data instead of addr

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --cc drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/kernel.fuc
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nv108.fuc.h
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nva3.fuc.h
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nvc0.fuc.h
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/subdev/pwr/fuc/nvd0.fuc.h
Simple merge