drm/amdgpu/powerplay: add set_mp1_state for vega20

This sets the SMU into the proper state for various
operations (shutdown, unload, GPU reset, etc.).

Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alex Deucher 2019-07-25 10:43:28 -05:00
commit a906277d22