drm/amd/powerplay: slow UCLK switch when multiple displays not in sync

Slow switch for UCLK when there is multiple displays and they are
not in sync.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Rex Zhu <rex.zhu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/hwmgr/vega10_hwmgr.c

@@ -3800,7 +3800,8 @@ static int vega10_notify_smc_display_config_after_ps_adjustment(
 	uint32_t i;
 	struct pp_display_clock_request clock_req;
 
-	if (hwmgr->display_config->num_display > 1)
+	if ((hwmgr->display_config->num_display > 1) &&
+	     !hwmgr->display_config->multi_monitor_in_sync)
 		vega10_notify_smc_display_change(hwmgr, false);
 	else
 		vega10_notify_smc_display_change(hwmgr, true);