Annotate physical interface bandwidth with tags attribute.
Annotate physical interface bandwidth with tags attribute.

This will ensure historical information is available for bandwidth
which will allow UI to draw charts based on this info.

Change-Id: Ifedeb271b252f981d4564d4a3cc9c4ba954ae608
Closes-Bug: #1647022

nischalsheth/contrail-controller,nischalsheth/contrail-controller,rombie/contrail-controller,rombie/contrail-controller,nischalsheth/contrail-controller,eonpatapon/contrail-controller,rombie/contrail-controller,eonpatapon/contrail-controller,nischalsheth/contrail-controller,nischalsheth/contrail-controller,eonpatapon/contrail-controller,nischalsheth/contrail-controller,eonpatapon/contrail-controller,nischalsheth/contrail-controller,eonpatapon/contrail-controller,rombie/contrail-controller,eonpatapon/contrail-controller,eonpatapon/contrail-controller,rombie/contrail-controller,rombie/contrail-controller,nischalsheth/contrail-controller,rombie/contrail-controller