RC* Atomic images are broken

[Dusty Mabe]

We found out today that all RC images for Atomic are broken. They are
building against a much older yum repo (the beta repos) and thus have
a very old systemd, which has some breakages with ostree. dgilmore and
maxamillion have done some investigation and believe they have
somewhat pinpointed the issue, although I don't know if they know of
an exact fix yet.

This would have been caught by tunir/autocloud but tunir skips this 
test for atomic images. I have submitted a PR for it to not do that [1].

Right now the last booting atomic image is TC11. If we don't do
another compose then we won't have an atomic image for release.

Dusty

[1] - https://github.com/kushaldas/tunirtests/pull/6