audio: mux: use IPC4_SINK_QUEUE_ID macro for buffer queue ID extraction

Use IPC4_SINK_QUEUE_ID() macro to properly extract the queue ID from
buffer ID in IPC4 mux implementation.

This ensures correct indexing into the streams[] array when mapping
source buffers to their corresponding stream configurations.

Signed-off-by: Adrian Bonislawski <adrian.bonislawski@intel.com>

Author: abonislawski

src/audio/mux/mux_ipc4.c

@@ -105,7 +105,7 @@ static void set_mux_params(struct processing_module *mod)
 		struct ipc4_audio_format *audio_fmt;
 
 		comp_dev_for_each_producer(dev, source) {
-			j = buf_get_id(source);
+			j = IPC4_SINK_QUEUE_ID(buf_get_id(source));
 			cd->config.streams[j].pipeline_id = buffer_pipeline_id(source);
 			if (j == BASE_CFG_QUEUED_ID)
 				audio_fmt = &cd->md.base_cfg.audio_fmt;