Fix ironic-conductor task dependencies

The ironic-conductor requires access to the ironic database which is
done in the ironic-db task. Previously we were just waiting for the
database task but we should require the ironic-db task which waits
for the database tasks to be completed and sets up the ironic database
user permissions.

Change-Id: I0a5d9007cf1fc286d4217faf977e54faf010eeb0
Closes-Bug: #1614473

deployment/puppet/openstack_tasks/examples/roles/tasks.yaml

@@ -155,7 +155,7 @@
       $.get('kombu_compression'))
   cross-depends:
     - name: ironic
-    - name: /^(primary-)?database$/
+    - name: ironic-db
     - name: /^(primary-)?rabbitmq$/
   parameters:
     puppet_manifest: /etc/puppet/modules/openstack_tasks/examples/roles/ironic-conductor.pp