!1162 fbcon: Check font dimension limits

Merge Pull Request from: @ci-robot 
 
PR sync from: Zhang Changzhong <zhangchangzhong@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/RIOXNQNOVQ5DSEVFMIG6YBDCEKDWMBOS/ 
 
 
Link:https://gitee.com/openeuler/kernel/pulls/1162

 

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