!928 hikey9xx: Fixed incorrect use of kfree to free sreg

Merge Pull Request from: @ci-robot 
 
PR sync from:  ZhaoLong Wang <wangzhaolong1@huawei.com>
 https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/thread/TB3Q7BQ6ZAGBRI7WS6JPCAF77IWURUIW/ 
 
 
Link:https://gitee.com/openeuler/kernel/pulls/928

 

Reviewed-by: zhangyi (F) <yi.zhang@huawei.com>
Reviewed-by: Jialin Zhang <zhangjialin11@huawei.com>
Signed-off-by: Jialin Zhang <zhangjialin11@huawei.com>