drm/am/powerplay: enable OUT OF BAND MONITER for sienna_cichlid

Enable OUT OF BAND MONITER 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

@@ -311,7 +311,8 @@ sienna_cichlid_get_allowed_feature_mask(struct smu_context *smu,
 				| FEATURE_MASK(FEATURE_BACO_BIT)
 				| FEATURE_MASK(FEATURE_APCC_DFLL_BIT)
 				| FEATURE_MASK(FEATURE_FAN_CONTROL_BIT)
-				| FEATURE_MASK(FEATURE_THERMAL_BIT);
+				| FEATURE_MASK(FEATURE_THERMAL_BIT)
+				| FEATURE_MASK(FEATURE_OUT_OF_BAND_MONITOR_BIT);
 
 	if (adev->pm.pp_feature & PP_SCLK_DPM_MASK) {
 		*(uint64_t *)feature_mask |= FEATURE_MASK(FEATURE_DPM_GFXCLK_BIT);