No app_time is only warning.

--HG--
branch : stable-1.5

master/fsm_master.c

@@ -888,7 +888,7 @@ void ec_fsm_master_enter_write_system_times(
 
     } else {
         if (master->active) {
-            EC_MASTER_ERR(master, "No app_time received up to now,"
+            EC_MASTER_WARN(master, "No app_time received up to now,"
                     " but master already active).\n");
         } else {
             EC_MASTER_DBG(master, 1, "No app_time received up to now.\n");