Merge branch 'bpf-jset-verifier'

Jakub Kicinski says:

====================
This is a v2 of the patch set to teach the verifier about BPF_JSET
instruction.  There is also a number of tests include for both
basic functioning of the instruction and the verifier logic.
The NFP JIT handling of JSET is tweaked.  Last patch adds missing
file to gitignore.

Reposting part of previous series without the dead code elimination.
====================

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