shared/bap: Set bcast stream metadata

This updates bt_bap_stream_metadata to handle broadcast streams,
by setting stream medatada.

src/shared/bap.c

@@ -4,7 +4,7 @@
  *  BlueZ - Bluetooth protocol stack for Linux
  *
  *  Copyright (C) 2022  Intel Corporation. All rights reserved.
- *  Copyright 2023 NXP
+ *  Copyright 2023-2024 NXP
  *
  */
 
@@ -5114,13 +5114,21 @@ unsigned int bt_bap_stream_metadata(struct bt_bap_stream *stream,
 	if (!stream)
 		return 0;
 
-	if (!stream->client) {
-		stream_metadata(stream, metadata, NULL);
+	switch (bt_bap_stream_get_type(stream)) {
+	case BT_BAP_STREAM_TYPE_UCAST:
+		if (!stream->client) {
+			stream_metadata(stream, metadata, NULL);
+			return 0;
+		}
+		return bap_stream_metadata(stream, BT_ASCS_METADATA,
+				metadata, func,	user_data);
+	case BT_BAP_STREAM_TYPE_BCAST:
+		util_iov_free(stream->meta, 1);
+		stream->meta = util_iov_dup(metadata, 1);
+		return 1;
+	default:
 		return 0;
 	}
-
-	return bap_stream_metadata(stream, BT_ASCS_METADATA, metadata, func,
-								user_data);
 }
 
 unsigned int bt_bap_stream_release(struct bt_bap_stream *stream,