Make sure /var/lib/mysql rights are setup correctly.

If you do an upgrade on then bootstrap[1] is not run, so you have to
make sure the permission are setup right every time.

This is duplicating what is happening in the pacemaker mysql template[2]

Partial-Bug: #1724636

[1] https://github.com/openstack/tripleo-heat-templates/blob/master/docker/services/database/mysql.yaml#L128
[2] https://github.com/openstack/tripleo-heat-templates/blob/master/docker/services/pacemaker/database/mysql.yaml#L162

Change-Id: Ib224dd10361171dfd579867be35a2c67a71fd9d5
(cherry picked from commit f48e11ee27)

docker/services/database/mysql.yaml

@@ -124,7 +124,8 @@ outputs:
             user: root
             volumes:
               - /var/log/containers/mysql:/var/log/mariadb
-            command: ['/bin/bash', '-c', 'chown -R mysql:mysql /var/log/mariadb']
+              - /var/lib/mysql:/var/lib/mysql
+            command: ['/bin/bash', '-c', 'chown -R mysql:mysql /var/log/mariadb /var/lib/mysql']
         step_2:
           mysql_bootstrap:
             start_order: 1