Enable health check for Ironic inspector services

This patch enables container health check script execution for containers
ironic_inspector and ironic_inspector_dnsmasq.

Change-Id: I62a50021605e1017e387f76595bd0f5680979900
Depends-On: Ie724b155fa071da9f1baee193cf79e2ecdc2ff30

docker/services/ironic-inspector.yaml

@@ -187,6 +187,8 @@ outputs:
             privileged: true
             net: host
             restart: always
+            healthcheck:
+              test: /openstack/healthcheck
             volumes:
               list_concat:
                 - {get_attr: [ContainersCommon, volumes]}
@@ -205,6 +207,8 @@ outputs:
             net: host
             restart: always
             user: root
+            healthcheck:
+              test: /openstack/healthcheck
             volumes:
               list_concat:
                 - {get_attr: [ContainersCommon, volumes]}