!9026 tty: n_gsm: fix possible out-of-bounds in gsm0_receive()

Merge Pull Request from: @ci-robot 
 
PR sync from: Cui GaoSheng <cuigaosheng1@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/73W7XHL7CBGIWLOFMQI57W4FDGCBUPWZ/ 
 
https://gitee.com/src-openeuler/kernel/issues/I9TAHR 
 
Link:https://gitee.com/openeuler/kernel/pulls/9026

 

Reviewed-by: Liu YongQiang <liuyongqiang13@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>