In I35c8d9985df21b3084fba558687e1f408e5a0878 we removed the
cinder_api_apache from step 2. This cause the upgrade to fail as the
next task is using that variable.
Converting it to a fact in step 0 so that we can call it later.
Change-Id: I55058fd6288eec87fd1cd028b4a684b9472496cb
Resolve-Bug: #1799166