Make module id of discovery server and dns agent consistent: a) Change DnsAgent to contrail-dns b) Change contrail-discovery:0 to contrail-discovery
Make module id of discovery server and dns agent consistent:
a) Change DnsAgent to contrail-dns
b) Change contrail-discovery:0 to contrail-discovery

Change-Id: Ib78ec93804e3e1e513235f74de0fb02c0d7796ae
Closes-PR: 1383577

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