Add contrail-compute-network role to tsn node
Add contrail-compute-network role to tsn node

contrail-compute-network role was missing on tsn node. It is needed
for proper configuration of contrail vrouter

Change-Id: Ide06380bb3178a9acdfc817c3da6f74f8c15854d

stackforge/fuel-plugin-contrail,stackforge/fuel-plugin-contrail,stackforge/fuel-plugin-contrail,stackforge/fuel-plugin-contrail