drm/amd/powerplay: enable RSMU SMN PG for sienna_cichlid

Enable RSMU SMN PG for sienna_cichlid.
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/sienna_cichlid_ppt.c

@@ -303,6 +303,7 @@ sienna_cichlid_get_allowed_feature_mask(struct smu_context *smu,
 				| FEATURE_MASK(FEATURE_DS_FCLK_BIT)
 				| FEATURE_MASK(FEATURE_FW_DSTATE_BIT)
 				| FEATURE_MASK(FEATURE_DF_CSTATE_BIT)
+				| FEATURE_MASK(FEATURE_RSMU_SMN_CG_BIT)
 				| FEATURE_MASK(FEATURE_GFX_SS_BIT)
 				| FEATURE_MASK(FEATURE_VR0HOT_BIT)
 				| FEATURE_MASK(FEATURE_PPT_BIT)