vyos.ifconfig: T3532: re-create Q-in-Q interface on protocol change
vyos.ifconfig: T3532: re-create Q-in-Q interface on protocol change

It is not possible to change the VLAN encapsulation protocol "on-the-fly". For
this "quirk" we need to actively delete and re-create the VIF-S interface.

vyos/vyos-1x,vyos/vyos-1x,vyos/vyos-1x,vyos/vyos-1x