Add vxlan to net pseudo interfaces.

net.pl

@@ -33,7 +33,7 @@
 
 my @allifaces = qw(bge bnxt em igc ix ixl re vio vmx);
 my @allmodifymodes = qw(none jumbo nolro nopf notso);
-my @allpseudos = qw(none bridge carp gif gif6 gre veb vlan wg);
+my @allpseudos = qw(none bridge carp gif gif6 gre veb vlan vxlan wg);
 my @allsetupmodes = (qw(build install upgrade sysupgrade keep kernel reboot
     tools), "cvs,build", "cvs,kernel");
 my @alltestmodes = qw(all icmp tcp udp splice);