In I75c740e7efc6662861c28caeb7fa965ba55438cb we are
making use of ::tripleo::profile::base::docker via
the tripleo::profile::base::docker_registry class. This
helps avoid duplicate puppet resources that
configure the docker service and package within these
modules.
As part of this we need to set step == 1 for the new
::tripleo::profile::base::docker class because it is
in use by t-h-t which has a stepwise architecture.
Change-Id: I6154f4c7435b02b92f6f64687e9ee89d6b86186a