!2869 mm, memory_hotplug: update pcp lists everytime onlining a memory block

Merge Pull Request from: @ci-robot 
 
PR sync from: Liu Shixin <liushixin2@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/IE3QS6BTVCSEFHAMQCCRU6UFSHS3GYSL/ 
 
https://gitee.com/openeuler/kernel/issues/I8GREH 
 
Link:https://gitee.com/openeuler/kernel/pulls/2869

 

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