Make VPN functional jobs voting
Make VPN functional jobs voting

Now that the VPN functional jobs running with the new job template have been
running non-voting, we can re-add the jobs to the gate queue and make them
voting.

Verified that the jobs, using the new template, ran with a Neutron commit,
using experimental job (see review 242222/6).

Later, based on community decision, the VPN functional job for StrongSwan
can be moved from Neutron experimental queue, to a voting queue.

Change-Id: I809ef7e61eaddcbfd11c26b218c784622f588c1d
Partial-Bug: 1495584

Tesora/tesora-project-config,dongwenjuan/project-config,openstack-infra/project-config,noorul/os-project-config,dongwenjuan/project-config,openstack-infra/project-config,noorul/os-project-config,Tesora/tesora-project-config