!907 tcp/dccp: Add another way to allocate local ports in connect()

Merge Pull Request from: @ci-robot 
 
PR sync from: Liu Jian liujian56@huawei.com https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/thread/BSVWS6P3YEQUKJMVM2L3BMIPHWVKODOD/ 
 
Link:https://gitee.com/openeuler/kernel/pulls/907

 

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