adds wait time for postgres setup as a variable

installer/roles/kubernetes/tasks/main.yml

@@ -103,7 +103,7 @@
 
 - name: Wait for Postgres to activate
   pause:
-    seconds: 60
+    seconds: "{{ postgress_activate_wait }}"
   when: openshift_pg_activate.changed or kubernetes_pg_activate.changed
 
 - name: Set image names if using custom registry