drm/amdgpu:two fixings for sdma v4 for SRIOV

no hw_fini for SRIOV, otherwise other VF will be affected
no CG for SRIOV
Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c

@@ -1172,6 +1172,9 @@ static int sdma_v4_0_hw_fini(void *handle)
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
+	if (amdgpu_sriov_vf(adev))
+		return 0;
+
 	sdma_v4_0_ctx_switch_enable(adev, false);
 	sdma_v4_0_enable(adev, false);
 
@@ -1406,6 +1409,9 @@ static int sdma_v4_0_set_clockgating_state(void *handle,
 {
 	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 
+	if (amdgpu_sriov_vf(adev))
+		return 0;
+
 	switch (adev->asic_type) {
 	case CHIP_VEGA10:
 		sdma_v4_0_update_medium_grain_clock_gating(adev,