!3058 tcp/dccp: Add another way to allocate local ports in connect()

Merge Pull Request from: @ci-robot 
 
PR sync from: Zhengchao Shao <shaozhengchao@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/77RQKI3ZY6HO4OHST67GHLFYV2TMRR4J/ 
 
https://gitee.com/openeuler/kernel/issues/I8KBYH 
 
Link:https://gitee.com/openeuler/kernel/pulls/3058

 

Reviewed-by: Yue Haibing <yuehaibing@huawei.com>
Signed-off-by: Zheng Zengkai <zhengzengkai@huawei.com>