Added l3 as forwarding mode
Added l3 as forwarding mode

Change-Id: Id205422109086b6e99f8f6fd6d4f1c979e5c1f7d
Partial-Bug: 1471637

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