!3057 livepatch/powerpc: Fix issue that miss one layer on stack checking

Merge Pull Request from: @ci-robot 
 
PR sync from: Zheng Yejian <zhengyejian1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/HPNY7FJQ4FYHFYRT7QLKN25UFD2TO7TP/ 
 
https://gitee.com/openeuler/kernel/issues/I7BMC9 
 
Link:https://gitee.com/openeuler/kernel/pulls/3057

 

Reviewed-by: Xu Kuohai <xukuohai@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>