Merge Pull Request from: @kwb0523 
 
add gid field in sock;
add bpf_get_sockops_uid_gid and bpf_sk_original_addr helper function;
original issue：https://gitee.com/openeuler/kernel/issues/I545NW 
 
Link:https://gitee.com/openeuler/kernel/pulls/1443 

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