The utility_all group was not added to nova and the tempest tests are
not being run against the tempest host.
Additionally, scheduling fails if the ansible_host for localhost is
"localhost", it needs to be set to an IP to prevent failures such as:
ValueError: failed to detect a valid IP address from 'localhost'
The defaulted "neutron_provider_networks" in the common test repository
takes precedence over the host_vars in the repository, we need to change
this by setting it in the nova-overrides.
This PR fixes that.
Change-Id: If7b731814a16593434952300679deb286093d899
a2ffeab2ca