IssueNo:#I29BRN

Description:Change the exception error message to Panic to clarify what normal does not return.
Sig:kernel
Feature or Bugfix:Bugfix
Binary Source:No

Change-Id: Ie7087cafe709f79604831f6d3eefcee6fe48ccbb

kernel/base/core/los_task.c

@@ -287,9 +287,7 @@ LITE_OS_SEC_TEXT VOID OsTaskToExit(LosTaskCB *taskCB, UINT32 status)
 
     if (taskCB->taskStatus & OS_TASK_FLAG_DETACHED) {
         UINT32 ret = OsTaskDeleteUnsafe(taskCB, status, intSave);
-        if (ret != LOS_OK) {
-            PRINT_ERR("Task exit delete failed! ERROR : 0x%x\n", ret);
-        }
+        LOS_Panic("Task delete failed! ERROR : 0x%x\n", ret);
     }
 
     OsTaskJoinPostUnsafe(taskCB);