We use zuul cloner + zuul to set up /etc/project-config for integration
testing with rsprec. As of zuulv3 this no longer results in an origin
remote being set which the puppet vcsrepo resource expects.
Address this expectation by manually configuring an origin remote after
we clone the repo.
Change-Id: I83e7088c36b1b57279bb32e44c9f74730da582cf