drm/radeon: Use new cik_structs.h file

Signed-off-by: Oded Gabbay <oded.gabbay@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

diff --cc drivers/gpu/drm/radeon/cik_reg.h
Simple merge

diff --cc drivers/gpu/drm/radeon/radeon_kfd.c
Simple merge