For Ubuntu, Install contrail-vrouter-generic package if one available for node's kernel version or install contrail-vrouter-dkms
For Ubuntu, Install contrail-vrouter-generic package if one available for node's kernel version or install contrail-vrouter-dkms

Change-Id: I88bac092424ec8ad8a7b56567674a4e5019dd375
Partial-Bug: 1390796

Juniper/contrail-fabric-utils,Juniper/contrail-fabric-utils