Modify Openstack telemetry keepalived instance

Build Openstack telemetry keepalived instance from service metadata
layer. Address, password and interface configure by previous values.

Change-Id: I6f5a1f9c6e9932fab982772de10294f82e09b706
diff --git a/ceilometer/server/cluster.yml b/ceilometer/server/cluster.yml
index cfe54f9..11488fb 100644
--- a/ceilometer/server/cluster.yml
+++ b/ceilometer/server/cluster.yml
@@ -1,8 +1,8 @@
 classes:
 - service.ceilometer.server.cluster
+- service.haproxy.proxy.single
 - system.haproxy.proxy.listen.openstack.ceilometer
 - system.keepalived.cluster.instance.openstack_telemetry_vip
-- service.haproxy.proxy.single
 parameters:
   ceilometer:
     server: