dpdk:fix checksum handling of l2 interfaces
dpdk:fix checksum handling of l2 interfaces

dpdk-input was dropping packets with bad ip-checksum on l2 interfaces

Change-Id: Ife5b52766bb71e878b1da6e94ae7b8a1e59fc478
Signed-off-by: Eyal Bari <fc8b6df29e0d3cf2af21713ee0e85afadbf47bf8@cisco.com>

FDio/vpp,chrisy/vpp,vpp-dev/vpp,vpp-dev/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,chrisy/vpp,chrisy/vpp,vpp-dev/vpp,FDio/vpp,FDio/vpp,vpp-dev/vpp,vpp-dev/vpp,vpp-dev/vpp,FDio/vpp,vpp-dev/vpp,chrisy/vpp,FDio/vpp,FDio/vpp,chrisy/vpp,FDio/vpp