bnx2x: Add vxlan RSS support

bnx2x: Add vxlan RSS support

Orabug: 22066196

Latest FW submission added some vxlan offload capabilities to our device.
This patch adds the ability to connect to the vxlan NDOs and configure
the UDP port associated with it in the HW.

The device would now be capable of performing RSS according to the
inner headers of the vxlan packets.

Signed-off-by: Rajesh Borundia <Rajesh.Borundia@qlogic.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit f34fa14cc033239037622dbe84faf53923bb7e74)

Signed-off-by: Dan Duval <dan.duval@oracle.com>