vxlan: fix SEGV reported in VPP-1962
vxlan: fix SEGV reported in VPP-1962

Type: fix

Replace vnet_register_interface with ethernet_register_interface

Fixes https://jira.fd.io/browse/VPP-1962

Signed-off-by: Ed Warnicke <6bfea2c617e4cc851d6eb93a06d7aa0bb865db55@gmail.com>
Change-Id: I5f578fc416605429fe1e2b510ad49eb754451d40
Signed-off-by: Ed Warnicke <6bfea2c617e4cc851d6eb93a06d7aa0bb865db55@gmail.com>

FDio/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,FDio/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,FDio/vpp