!3649 x86/kdump: add log before booting crash kernel

Merge Pull Request from: @ci-robot 
 
PR sync from: zhangnaichuan <zhangnaichuan@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/S7DO4APBAUKFPSWMLE7ICMSEFMEKT6FX/ 
description:
Just like arm64, print "Bye!" before booting crash kernel.


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2.33.0
 
https://gitee.com/openeuler/kernel/issues/I8RJ7E?from=project-issue 
 
Link:https://gitee.com/openeuler/kernel/pulls/3649

 

Reviewed-by: Wei Li <liwei391@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>