Closes-Bug: #1549612 - Reintroducing explicit stopping of openstack s…

…ervices before supervisor-openstack takes over

This is necessary as supervisor-openstack is unable to take over running services.
Previous change introduced override files in contrail-openstack package which have no effect on SM provisioning due to different install order

Change-Id: Ic79e77261a3c92ddbc17dd066ea371ea0350d0a5

common/debian/contrail-openstack/debian/contrail-openstack.postinst

@@ -3,6 +3,7 @@ for svc in keystone nova-api nova-scheduler nova-conductor nova-console\
            nova-consoleauth nova-objectstore nova-novncproxy glance-api\
            glance-registry cinder-api cinder-scheduler heat-engine heat-api heat-api-cfn ; do
     if [ -f /etc/init/$svc.conf ]; then
+        service $svc stop || true
         mv /etc/init/$svc.conf /etc/init/$svc.conf.backup
     fi
     if [ -f /etc/init.d/$svc ]; then