Neutron: enable a voting py34 gate on master
Neutron: enable a voting py34 gate on master

With commit 8db41f04, "tox -epy34" is now successful in Neutron. Make sure it
stays that way by enabling a voting gate on the master branch.

Change-Id: I1e11c922d79fde4505904f83d477e23927504555

anbangr/osci-project-config,coolsvap/project-config,openstack-infra/project-config,openstack-infra/project-config,dongwenjuan/project-config,citrix-openstack/project-config,coolsvap/project-config,dongwenjuan/project-config,Tesora/tesora-project-config,noorul/os-project-config,noorul/os-project-config,citrix-openstack/project-config,anbangr/osci-project-config,Tesora/tesora-project-config