ASoC: SOF: ipc4-topology: set config_length based on device_count

Set ipc4_copier->data.gtw_cfg.config_length dynamically based on
blob->alh_cfg.device_count to align with the other OS.
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://msgid.link/r/20240213123007.29956-1-peter.ujfalusi@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/sof/ipc4-topology.c

@@ -598,7 +598,11 @@ static int sof_ipc4_widget_setup_comp_dai(struct snd_sof_widget *swidget)
 		}
 
 		ipc4_copier->copier_config = (uint32_t *)blob;
-		ipc4_copier->data.gtw_cfg.config_length = sizeof(*blob) >> 2;
+		/* set data.gtw_cfg.config_length based on device_count */
+		ipc4_copier->data.gtw_cfg.config_length = (sizeof(blob->gw_attr) +
+							   sizeof(blob->alh_cfg.device_count) +
+							   sizeof(*blob->alh_cfg.mapping) *
+							   blob->alh_cfg.device_count) >> 2;
 		break;
 	}
 	case SOF_DAI_INTEL_SSP: