Record correct mutex (LOCK_STATUS and acl_cache) order for debugging.

sql/sql_acl.cc

@@ -2770,6 +2770,7 @@ bool acl_reload(THD *thd)
   }
 
   acl_cache->clear(0);
+  mysql_mutex_record_order(&acl_cache->lock, &LOCK_status);
   mysql_mutex_lock(&acl_cache->lock);
 
   old_acl_hosts= acl_hosts;