Bluetooth: ASCS: Missing cleanup of stream for idle state

When the stream enters the idle state, some values were not
properly reset (e.g. the stream->ep).

Use the bt_bap_stream_detach function to clean up the stream.

Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>

Author: Thalley

subsys/bluetooth/audio/ascs.c

@@ -318,10 +318,7 @@ static void ase_enter_state_idle(struct bt_ascs_ase *ase)
 
 	ase->ep.receiver_ready = false;
 
-	if (stream->conn != NULL) {
-		bt_conn_unref(stream->conn);
-		stream->conn = NULL;
-	}
+	bt_bap_stream_detach(stream);
 
 	ops = stream->ops;
 	if (ops != NULL && ops->released != NULL) {