Merge pull request #5822 from ewolinetz/bz1504191

Updating to use same image as origin until enterprise image is built

roles/openshift_logging_elasticsearch/vars/openshift-enterprise.yml

@@ -1,3 +1,3 @@
 ---
-__openshift_logging_elasticsearch_proxy_image_prefix: "registry.access.redhat.com/openshift3/"
+__openshift_logging_elasticsearch_proxy_image_prefix: "{{ openshift_logging_image_prefix | default('registry.access.redhat.com/openshift3/') }}"
 __openshift_logging_elasticsearch_proxy_image_version: "v3.7"