Allow 0xe1 async frames in icom frame.c

rigs/icom/frame.c

@@ -206,6 +206,11 @@ again1:
             RETURNFUNC(-RIG_EPROTO);
         }
 
+        if (buf[2] == 0xe1)
+        {
+            rig_debug(RIG_DEBUG_VERBOSE, "%s: async packet? Read again\n", __func__);
+            goto again1;
+        }
         if (icom_is_async_frame(rig, frm_len, buf))
         {
             icom_process_async_frame(rig, frm_len, buf);