Some JITs can optimize comparisons with zero.  Add a couple of
BPF_JSGE tests against immediate zero.
Signed-off-by: NDavid Daney <david.daney@cavium.com>
Acked-by: NDaniel Borkmann <daniel@iogearbox.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>