i40e: Enable Geneve offload for FW API ver > 1.4 for XL710/X710 devices

This patch enables the Capability for XL710/X710 devices with FW API
version higher than 1.4 to do geneve Rx offload.

Change-ID: I9a8f87772c48d7d67dc85e3701d2e0b845034c0b
Signed-off-by: Anjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>