Gate jobs are voting
Gate jobs are voting

Make grenade-devstack-barbican voting, all gate jobs should be voting -
or not run in gate at all since they only waste resources and get
ignored. The job is passing, so making it voting is the proper change.

Rename job also to follow naming guidelines for zuul jobs, see
https://docs.openstack.org/infra/manual/drivers.html#naming-with-zuul-v3

Change-Id: Ib5691b03e360631658e7fd80f958f55030a29782

openstack/barbican,openstack/barbican