!5313 bus: mhi: host: Add alignment check for event ring read pointer

Merge Pull Request from: @ci-robot 
 
PR sync from: Cai Xinchen <caixinchen1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/5P43BOOHUNGIIKEKWN4KMVY6UIJOVG5I/ 
 
https://gitee.com/openeuler/kernel/issues/I99JF1 
 
Link:https://gitee.com/openeuler/kernel/pulls/5313

 

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