!2466 x86/microcode/AMD: Make stub function static inline

Merge Pull Request from: @ci-robot 
 
PR sync from: liwei <liwei728@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/4BYFJ5FPQVBXBOF7SSBZGAUF5AHRMXQX/ 
 
https://gitee.com/openeuler/kernel/issues/I88UBD?from=project-issue 
 
Link:https://gitee.com/openeuler/kernel/pulls/2466

 

Reviewed-by: Xie XiuQi <xiexiuqi@huawei.com>
Signed-off-by: Zhang Changzhong <zhangchangzhong@huawei.com>