Change Puppet OpenStack Zuul layout ordering
Change Puppet OpenStack Zuul layout ordering

Change layout ordering so:
* Xenial jobs will only run after Mitaka / Hammer
* Trusty  jobs will only run for Mitaka / Hammer and before.

Change-Id: I89c2cc903af5a7cf15de09bb406819d022f399ba

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