Enable only LBAASv1 for liberty 3.0.1

Enable only LBAASv1 for liberty 3.0.1

Change-Id: Ic325501ac2abf906bc139a6426c0f0d1cf0b3c6b
Closes-Bug: 1561808

contrail_provisioning/config/scripts/quantum-server-setup.sh

@@ -106,15 +106,19 @@ if [ -d /etc/neutron ]; then
             liberty_ubuntu=1
         fi
     fi
+    '''
+    #### Enable LBAASv2 only starting 3.0.2
     if [ $is_ubuntu -eq 1 ] && [ $liberty_ubuntu -eq 1 ] ; then 
-        # for liberty loadbalanacer plugin would be V2 by default and
-        # neutron_lbaas extensions would be needed in api_extensions_path
         openstack-config --set /etc/neutron/neutron.conf DEFAULT api_extensions_path extensions:${PYDIST}/neutron_plugin_contrail/extensions:${PYDIST}/neutron_lbaas/extensions
         openstack-config --set /etc/neutron/neutron.conf DEFAULT service_plugins neutron_plugin_contrail.plugins.opencontrail.loadbalancer.v2.plugin.LoadBalancerPluginV2
     else
         openstack-config --set /etc/neutron/neutron.conf DEFAULT api_extensions_path extensions:${PYDIST}/neutron_plugin_contrail/extensions
         openstack-config --set /etc/neutron/neutron.conf DEFAULT service_plugins neutron_plugin_contrail.plugins.opencontrail.loadbalancer.plugin.LoadBalancerPlugin
     fi
+    #### Enable LBAASv2 only starting 3.0.2
+    '''
+    openstack-config --set /etc/neutron/neutron.conf DEFAULT api_extensions_path extensions:${PYDIST}/neutron_plugin_contrail/extensions
+    openstack-config --set /etc/neutron/neutron.conf DEFAULT service_plugins neutron_plugin_contrail.plugins.opencontrail.loadbalancer.plugin.LoadBalancerPlugin
 
     openstack-config --del /etc/neutron/neutron.conf service_providers service_provider
     openstack-config --set /etc/neutron/neutron.conf service_providers service_provider LOADBALANCER:Opencontrail:neutron_plugin_contrail.plugins.opencontrail.loadbalancer.driver.OpencontrailLoadbalancerDriver:default