+++ This bug was initially created as a clone of Bug #1805733 +++
Description of problem:
We need to fix the downstream ceph_ansible_repo variable to make sure the current OSP version uses the right c-a version from the right repo.
If the repo is wrong, the validation let the overcloud deployment fail.
Version-Release number of selected component (if applicable):
Steps to Reproduce:
Closing EOL, OSP 15 has been retired as of Sept 19, 2020