hulk inclusion
category: feature
bugzilla: https://gitee.com/openeuler/kernel/issues/I545NW
CVE: NA

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UID and GID are requested as filters for socketmap, but we can only get
UID from sock structure. This patch adds GID field to struct sock as UID.
Signed-off-by: NLu Wei <luwei32@huawei.com>
Signed-off-by: NLiu Jian <liujian56@huawei.com>
Reviewed-by: NWei Yongjun <weiyongjun1@huawei.com>
Signed-off-by: NZheng Zengkai <zhengzengkai@huawei.com>