Prefer v4 addresses over v6 addresses and ignore link-locals.
Prefer v4 addresses over v6 addresses and ignore link-locals.

Change-Id: I74d974c283ef87bb3325917a801a887540af6a9f
Closes-Bug: #1476835

DreamLab/contrail-controller,eonpatapon/contrail-controller,vmahuli/contrail-controller,nischalsheth/contrail-controller,facetothefate/contrail-controller,vpramo/contrail-controller,rombie/contrail-controller,tcpcloud/contrail-controller,vmahuli/contrail-controller,codilime/contrail-controller,reiaaoyama/contrail-controller,vpramo/contrail-controller,facetothefate/contrail-controller,DreamLab/contrail-controller,rombie/contrail-controller,eonpatapon/contrail-controller,DreamLab/contrail-controller,rombie/contrail-controller,eonpatapon/contrail-controller,facetothefate/contrail-controller,tcpcloud/contrail-controller,nischalsheth/contrail-controller,codilime/contrail-controller,reiaaoyama/contrail-controller,numansiddique/contrail-controller,eonpatapon/contrail-controller,facetothefate/contrail-controller,hthompson6/contrail-controller,codilime/contrail-controller,vpramo/contrail-controller,codilime/contrail-controller,reiaaoyama/contrail-controller,nischalsheth/contrail-controller,reiaaoyama/contrail-controller,nischalsheth/contrail-controller,sajuptpm/contrail-controller,hthompson6/contrail-controller,eonpatapon/contrail-controller,tcpcloud/contrail-controller,vmahuli/contrail-controller,tcpcloud/contrail-controller,sajuptpm/contrail-controller,sajuptpm/contrail-controller,reiaaoyama/contrail-controller,tcpcloud/contrail-controller,sajuptpm/contrail-controller,vmahuli/contrail-controller,nischalsheth/contrail-controller,hthompson6/contrail-controller,rombie/contrail-controller,vmahuli/contrail-controller,hthompson6/contrail-controller,nischalsheth/contrail-controller,nischalsheth/contrail-controller,facetothefate/contrail-controller,rombie/contrail-controller,sajuptpm/contrail-controller,hthompson6/contrail-controller,vpramo/contrail-controller,rombie/contrail-controller,codilime/contrail-controller,eonpatapon/contrail-controller,rombie/contrail-controller,numansiddique/contrail-controller,eonpatapon/contrail-controller,numansiddique/contrail-controller,numansiddique/contrail-controller,vpramo/contrail-controller,tcpcloud/contrail-controller,codilime/contrail-controller,nischalsheth/contrail-controller,numansiddique/contrail-controller,DreamLab/contrail-controller,DreamLab/contrail-controller,sajuptpm/contrail-controller