Fix ceilometer_agent_compute healthcheck

Health check of Ceilometer compute agent does not check connection to RabbitMQ,
but connection to Redis, hence it should not use the RpcPort parameter.

Change-Id: Ic573d5a1fa1d695d19934246fe4d48c0d3065eb1
(cherry picked from commit d63d2c63ab)

deployment/ceilometer/ceilometer-agent-compute-container-puppet.yaml

@@ -101,7 +101,8 @@ outputs:
             net: host
             privileged: false
             restart: always
-            healthcheck: {get_attr: [ContainersCommon, healthcheck_rpc_port]}
+            healthcheck:
+              test: /openstack/healthcheck
             volumes:
               list_concat:
                 - {get_attr: [ContainersCommon, volumes]}