eus --> e4s, add crb to base images#7911

joepvd wants to merge 1 commit intoopenshift-eng:openshift-4.20openshift-eng/ocp-build-data:openshift-4.20from

joepvd:fix-base-repos-4.20joepvd/ocp-build-data:fix-base-repos-4.20Copy head branch name to clipboard