Change UDP tunnel training packets for the switch to work for both
Geneve and VXLAN cases.
Signed-off-by: Dan Nowlin <dan.nowlin@intel.com> Signed-off-by: Paul M Stillwell Jr <paul.m.stillwell.jr@intel.com> Signed-off-by: Qi Zhang <qi.z.zhang@intel.com> Acked-by: Xiaolong Ye <xiaolong.ye@intel.com>