In an effort to uprev the SR-IOV and multus images, add the
ghcr registries, which is where the upstream release images are
now tracked and stored.
Depends-On: https://review.opendev.org/c/starlingx/config/+/806944
Story: 2008972
Task: 42929
Signed-off-by: Steven Webster <steven.webster@windriver.com>
Change-Id: I7755f910c1e71d08c1b8b3e054c2bf5d7e16662e