Don't expect nova-network is up if Neutron is used
Don't expect nova-network is up if Neutron is used

If we use Neutron as network provider for OpenStack
cloud, nova-network service is not enabled on compute
nodes, so we should expect 14 Nova services are running
instead of 16.

Change-Id: Ie929d1c1f46dc11000c1b06469dafa5c8aaed330
Closes-bug: #1372056

ddepaoli3/fuel-main-dev,dancn/fuel-main-dev,ddepaoli3/fuel-main-dev,Fiware/ops.Fuel-main-dev,SergK/fuel-main,huntxu/fuel-main,stackforge/fuel-main,SmartInfrastructures/fuel-main-dev,AnselZhangGit/fuel-main,Fiware/ops.Fuel-main-dev,teselkin/fuel-main,teselkin/fuel-main,ddepaoli3/fuel-main-dev,dancn/fuel-main-dev,zhaochao/fuel-main,Fiware/ops.Fuel-main-dev,stackforge/fuel-main,eayunstack/fuel-main,Fiware/ops.Fuel-main-dev,ddepaoli3/fuel-main-dev,dancn/fuel-main-dev,zhaochao/fuel-main,SmartInfrastructures/fuel-main-dev,zhaochao/fuel-main,eayunstack/fuel-main,AnselZhangGit/fuel-main,dancn/fuel-main-dev,SmartInfrastructures/fuel-main-dev,SergK/fuel-main,SmartInfrastructures/fuel-main-dev,huntxu/fuel-main,teselkin/fuel-main,zhaochao/fuel-main,teselkin/fuel-main,stackforge/fuel-main,AnselZhangGit/fuel-main,eayunstack/fuel-main,AnselZhangGit/fuel-main,zhaochao/fuel-main,SergK/fuel-main,huntxu/fuel-main