[CORD-2744]
Use `docker-registry` instead of `registry` for dns name of Docker
registry in helm chart

Change-Id: I897ea6b5ee502589658cf27c825e03c487b6a4e9
diff --git a/roles/cord-helm-charts/defaults/main.yml b/roles/cord-helm-charts/defaults/main.yml
index 69147f5..9c4f178 100644
--- a/roles/cord-helm-charts/defaults/main.yml
+++ b/roles/cord-helm-charts/defaults/main.yml
@@ -27,7 +27,7 @@
 
 # Docker related settings
 docker_registry_ext_port: "5000"
-docker_registry: "registry.{{ site_suffix }}:{{ docker_registry_ext_port }}"
+docker_registry: "docker-registry.{{ site_suffix }}:{{ docker_registry_ext_port }}"
 
 docker_tag: "candidate"