fix: L1-liteos-tdd测试liteos_a_process_unittest.bin,liteos_a_security_vid_unittest.bin和liteos_a_time_clock_unittest.bin模块用例un

【背景】L1-liteos-tdd测试liteos_a_process_unittest.bin,liteos_a_security_vid_unittest.bin和liteos_a_time_clock_unittest.bin模块用例un

【修改方案】
 1.暂时将musl中的exit()接口中的原子操作改为使用mutex方式实现
 2.删除内核中不必要的打印

re #I4K9A5

Signed-off-by: xuiny <xuxinyu6@huawei.com>
Change-Id: Ifdbb9154c7541b863670bb4e3bcde2587970df38

kernel/base/core/los_task.c

@@ -617,9 +617,6 @@ LITE_OS_SEC_TEXT LosTaskCB *OsGetFreeTaskCB(VOID)
     if (LOS_ListEmpty(&g_losFreeTask)) {
         SCHEDULER_UNLOCK(intSave);
         PRINT_ERR("No idle TCB in the system!\n");
-#ifdef LOSCFG_DEBUG_VERSION
-	(VOID)OsShellCmdTskInfoGet(OS_ALL_TASK_MASK, NULL, OS_PROCESS_INFO_ALL);
-#endif
         return NULL;
     }