drm/amd/powerplay: skip disable dynamic state management

Under sriov, the disable operation is no allowed.
Signed-off-by: Yintian Tao <yttao@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/hwmgr/hardwaremanager.c

@@ -99,6 +99,9 @@ int phm_disable_dynamic_state_management(struct pp_hwmgr *hwmgr)
 
 	PHM_FUNC_CHECK(hwmgr);
 
+	if (!hwmgr->not_vf)
+		return 0;
+
 	if (!smum_is_dpm_running(hwmgr)) {
 		pr_info("dpm has been disabled\n");
 		return 0;