This change updates the Ceph images to 18.2.2 images patched with a
fix for https://tracker.ceph.com/issues/63684. It also reverts the
package repository in the deployment scripts to use the debian-reef
directory on download.ceph.com instead of debian-18.2.1. The issue
with the repo that prompted the previous change to debian-18.2.1
has been resolved and the more generic debian-reef directory may
now be used again.
Change-Id: I85be0cfa73f752019fc3689887dbfd36cec3f6b2