drm/nouveau/device: register for acpi events

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/acpi.c
Simple merge

diff --cc drivers/gpu/drm/nouveau/core/engine/device/acpi.h
Simple merge

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

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