This change updates all Ceph image references to use Focal images
for all charts in openstack-helm.
Change-Id: I67cd294e2aabf3c3af404da42204f9b6157b06f7
This change adds the overrides needed to run both the Xena and
Yoga releases in the OSH zuul jobs.
Change-Id: I65e016a4cb3fd52707ab29c37f025818fcb6c405