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

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Add new optname(BPF_SO_ORIGINAL_DST 800, BPF_SO_REPLY_SRC 801)
to get origdst/reply src for bpf progs.
Now only support IPv4.
Signed-off-by: NWang Yufen <wangyufen@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>