Fix contrail-status for 14.04 containers
Fix contrail-status for 14.04 containers

On 14.04 container the docker is launched using supervisor and
hence added supervisor as the init system. Do not check status
of supervisor-{role} from contrail-status since it is not started
from any init system in 14.04 container.

Change-Id: Iadc62a6f737bde90335a694a6be63c47369bf55a
Closes-Bug: #1665523

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