!8290 [sync] PR-8150:  mptcp: use OPTION_MPTCP_MPJ_SYNACK in subflow_finish_connect()

Merge Pull Request from: @openeuler-sync-bot 
 

Origin pull request: 
https://gitee.com/openeuler/kernel/pulls/8150 
 
PR sync from: Ziyang Xuan <william.xuanziyang@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/STBXYLN4FIVD5PPEUFSZ4SAUL2MJ5IFU/ 
 
https://gitee.com/src-openeuler/kernel/issues/I9Q9D1 
 
Link:https://gitee.com/openeuler/kernel/pulls/8290 

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