drm/amd/powerplay: implement sensor of get feature mask

add sensor interface of feature mask for debugfs.
this interface is not ip related function, so need move high level
file to implement (amdgpu_smu)

Signed-off-by: Kevin Wang <[email protected]>
Reviewed-by: Huang Rui <[email protected]>
Reviewed-by: Evan Quan <[email protected]>
Acked-by: Alex Deucher <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
3 files changed