Merge branch 'bpf-sockaddr-wide-store'

Stanislav Fomichev says:

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Clang can generate 8-byte stores for user_ip6 & msg_src_ip6,
let's support that on the verifier side.

v3:
* fix comments spelling an -> and (Andrii Nakryiko)

v2:
* Add simple cover letter (Yonghong Song)
* Update comments (Yonghong Song)
* Remove [4] selftests (Yonghong Song)
====================

Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>