automaton renamed to python-automaton

Cinder is broken by this RDO package rename.  Maintaining docker templates
for basic things like this until the /docker directory is removed.

Change-Id: Ieae2ab3296346767c305d21e8bb8de964160f84a
Closes-Bug: #1487762

docker/centos/binary/cinder/cinder-base/Dockerfile

 FROM %%KOLLA_NAMESPACE%%/%%KOLLA_PREFIX%%base:%%KOLLA_TAG%%
 MAINTAINER Kolla Project (https://launchpad.net/kolla)
 
-RUN yum -y install openstack-cinder automaton && yum clean all
+RUN yum -y install openstack-cinder python-automaton && yum clean all

docker_templates/cinder/cinder-base/Dockerfile.j2

@@ -5,7 +5,7 @@ MAINTAINER Kolla Project (https://launchpad.net/kolla)
     {% if base_distro in ['fedora', 'centos', 'oraclelinux'] %}
 
 RUN yum -y install openstack-cinder \
-    automaton \
+    python-automaton \
   && yum clean all
 
      {% elif base_distro in ['ubuntu', 'debian'] %}