wg: Do not check assigned interface (Ticket #5186)
wg: Do not check assigned interface (Ticket #5186)

When saving changes on wireguard, do not check address conflict on
interface assigned to that tunnel, otherwise, it will not allow user to
save any modification

NewEraCracker/pfsense,pfsense/pfsense,dennypage/pfsense,pfsense/pfsense,pfsense/pfsense,NewEraCracker/pfsense,dennypage/pfsense,NewEraCracker/pfsense,dennypage/pfsense,NewEraCracker/pfsense,dennypage/pfsense,pfsense/pfsense