zuul: use the new barbican simple-crypto job
zuul: use the new barbican simple-crypto job

The old job name is still available as an alias for a while,
but it is time to switch away from it.

Change-Id: I93c35b386e1b1cbcff74fe0a2388f0eda5dea3b9

klmitch/nova,mahak/nova,openstack/nova,mahak/nova,klmitch/nova,openstack/nova,mahak/nova,openstack/nova,klmitch/nova,klmitch/nova