Add link local VIPs to FaucetUntaggedIPv6InterVLANRouteTest.
Add link local VIPs to FaucetUntaggedIPv6InterVLANRouteTest.

trentindav/faucet,mwutzke/faucet,trungdtbk/faucet,REANNZ/faucet,gizmoguy/faucet,REANNZ/faucet,gizmoguy/faucet,faucetsdn/faucet,mwutzke/faucet,shivarammysore/faucet,trungdtbk/faucet,anarkiwi/faucet,shivarammysore/faucet,faucetsdn/faucet,trentindav/faucet,anarkiwi/faucet