libcpu: Recognize bpf jump variants BPF_JLT, BPF_JLE, BPF_JSLT and BPF_JSLE

libcpu: Recognize bpf jump variants BPF_JLT, BPF_JLE, BPF_JSLT and BPF_JSLE

Linux kernel 4.13 introduced 4 more jump class variants.

  commit 92b31a9af73b3a3fc801899335d6c47966351830
  Author: Daniel Borkmann <daniel@iogearbox.net>
  Date:   Thu Aug 10 01:39:55 2017 +0200

    bpf: add BPF_J{LT,LE,SLT,SLE} instructions

For conditional jumping on unsigned and signed < and <= between a register
and another register or immediate.

Add these new constants to bpf.h, recognize them in bpf_disasm and update
the testfile-bpf-dis1.expect file.

Signed-off-by: Mark Wielaard <mark@klomp.org>