!3298 ARM: Add unwinding annotations to __loop.*delay functions

Merge Pull Request from: @ci-robot 
 
PR sync from: Xu Kuohai <xukuohai@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/E6E74IZU3B7IMXI37EQNMRTEZEAA4AVY/ 
 
https://gitee.com/openeuler/kernel/issues/I8MTBB 
 
Link:https://gitee.com/openeuler/kernel/pulls/3298

 

Reviewed-by: Zhang Jianhua <chris.zjh@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>