fix backup macro block reader not reset when in inner retry process

deps/oblib/src/lib/utility/ob_tracepoint.h

@@ -633,6 +633,7 @@ class EventTable
       EN_ADD_BACKUP_FINISH_DAG_FAILED = 1108,
       EN_ADD_BACKUP_PREFETCH_DAG_FAILED = 1109,
       EN_BACKUP_PERSIST_SET_TASK_FAILED = 1110,
+      EN_BACKUP_READ_MACRO_BLOCK_FAILED = 1111,
       
       EVENT_TABLE_MAX = SIZE_OF_EVENT_TABLE
     };