contrail: Fix lintian packaging issues (vrouter)
contrail: Fix lintian packaging issues (vrouter)

* package-needs-versioned-debhelper-build-depends
* debhelper-overrides-need-versioned-build-depends
* no-priority-field

Change-Id: Ib5ee73ba00e151799a6ef503b300247fcaad076c

Juniper/contrail-packages,Juniper/contrail-packages,vpramo/contrail-packages,tcpcloud/contrail-packages,fpytloun/contrail-packages