tc: flower: support matching flags

tc: flower: support matching flags

Enhance flower to support matching on flags.

The 1st flag allows to match on whether the packet is
an IP fragment.

Example:

	# add a flower filter that will drop fragmented packets
	# (bit 0 of control flags)
	tc filter add dev ens4f0 protocol ip parent ffff: \
		flower \
		src_mac e4:1d:2d:fd:8b:01 \
		dst_mac e4:1d:2d:fd:8b:02 \
		indev ens4f0 \
		matching_flags 0x1/0x1 \
	action drop

Signed-off-by: Paul Blakey <paulb@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Reviewed-by: Roi Dayan <roid@mellanox.com>