copier: dmic: use gateway config

Use previously saved gateway config instead of ipc config to retrieve
correct DMIC DMA config data and configure DMA channel.

Signed-off-by: Ievgen Ganakov <ievgen.ganakov@intel.com>

src/audio/copier/copier_dai.c

@@ -231,8 +231,7 @@ int copier_dai_create(struct comp_dev *dev, struct copier_data *cd,
 		dai.type = SOF_DAI_INTEL_DMIC;
 		dai.is_config_blob = true;
 		type = ipc4_gtw_dmic;
-
-		ret = ipc4_find_dma_config(&dai, (uint8_t *)copier->gtw_cfg.config_data,
+		ret = ipc4_find_dma_config(&dai, (uint8_t *)cd->gtw_cfg,
 					   copier->gtw_cfg.config_length * 4);
 		if (ret != 0) {
 			comp_err(dev, "No dmic dma_config found in blob!");