switchover to primary check ls is sync on RS side

src/share/ob_debug_sync_point.h

@@ -394,6 +394,8 @@ class ObString;
     ACT(BEFORE_RESTORE_TABLETS_META,)\
     ACT(BEFORE_RESTORE_MINOR,)\
     ACT(BEFORE_DO_FLASHBACK,)\
+    ACT(PREPARE_FLASHBACK_FOR_SWITCH_TO_PRIMARY,)\
+    ACT(SWITCHING_TO_STANDBY,)\
     ACT(BEFORE_LS_RESTORE_SYS_TABLETS,)\
     ACT(BEFORE_WAIT_RESTORE_SYS_TABLETS,)\
     ACT(BEFORE_WAIT_RESTORE_TABLETS_META,)\