Update the panko location of site.yml

The panko database type can be mongodb, so the panko container should
boot after mongodb

Change-Id: Ide3a90a4882197bf361c794dccccbc195b89e5bb
Closes-Bug: #1668206

ansible/site.yml

@@ -240,14 +240,6 @@
         tags: nova,
         when: enable_nova | bool }
 
-- name: Apply role panko
-  hosts: panko-api
-  serial: '{{ serial|default("0") }}'
-  roles:
-    - { role: panko,
-        tags: panko,
-        when: enable_panko | bool }
-
 # (gmmaha): Please do not change the order listed here. The current order is a
 # workaround to fix the bug https://bugs.launchpad.net/kolla/+bug/1546789
 - name: Apply role neutron
@@ -369,6 +361,14 @@
         tags: mongodb,
         when: enable_mongodb | bool }
 
+- name: Apply role panko
+  hosts: panko-api
+  serial: '{{ serial|default("0") }}'
+  roles:
+    - { role: panko,
+        tags: panko,
+        when: enable_panko | bool }
+
 - name: Apply role manila
   hosts:
     - manila-api