including the contrail_thirdparty_repo in the enable repo, as we are spl...

Steps to install with split contrail packages:
1. copy contrail-install-packages*.deb | .rpm to one of the cfgm
2. install the package using (yum localinstall | dpkg -i)
3 execute /opt/contrail/contrail_packages/setup.sh
4. copy contrail-third_party-packages*.deb | .rpm to one of the cfgm
5. install the third_party package using (yum localinstall | dpkg -i)
6.execute /opt/contrail/contrail_packages/third_party_setup.sh

7. fab install_contrail
8. fab setup_all