use fqdn for zuul projects
use fqdn for zuul projects

When setting up a 3pci zuul, there is an edge case where a downstream
zuul may already have openstack/foo projects, eg:
review.rdoproject.org/openstack/foo.  In this case, if openstack
projects are not namespaced to include the connection information zuul
gets confused and complains.  We can avoid this by using the fqdn for
git.o.o for devstack jobs and both upstream and downstream zuul will
properly use the correct connection.

Change-Id: If7ca3bdad124efecc93b1f5c70c2e6d2c927886c
Signed-off-by: Paul Belanger <e7139c8e6c4ea75cc1c287ce081b2dc0f3ab39ec@redhat.com>

cisco-openstack/tempest,masayukig/tempest,masayukig/tempest,cisco-openstack/tempest,openstack/tempest,openstack/tempest