drm/amd/display: Set DRAM clock if retraining is required

Set DRAM clock change state if retraining is required.
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/dml/dcn32/display_mode_vba_util_32.c

@@ -4338,7 +4338,7 @@ void dml32_CalculateWatermarksMALLUseAndDRAMSpeedChangeSupport(
 				+ v->WritebackChunkSize * 1024.0 / 32.0 / SOCCLK;
 	}
 	if (v->USRRetrainingRequiredFinal)
-		v->Watermark.WritebackUrgentWatermark = v->Watermark.WritebackUrgentWatermark
+		v->Watermark.WritebackDRAMClockChangeWatermark = v->Watermark.WritebackDRAMClockChangeWatermark
 				+ mmSOCParameters.USRRetrainingLatency;
 
 	if (TotalActiveWriteback <= 1) {