In SRIOV case, SMU and powerplay are handled in HV.

VF shouldn't have control over SMU and powerplay.
Signed-off-by: NJiange Zhao <Jiange.Zhao@amd.com>
Reviewed-by: NEmily Deng <Emily.Deng@amd.com>
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>