* This adds some extra options to the ensure-kubernetes role:
* podman + cri-o can now be used for testing
* This mode seems to be slightly more supported than the
current profiles.
* The location for minikube install can be moved.
* The use-buildset-registry role needed slight updates in order
to populate the kubernetes registry config early.
Change-Id: Ia578f1e00432eec5d81304f70db649e420786a02
83bfd5b917