[CORD-1805] Fix ELK Stack support in logging module

Change-Id: I2f8bc4219b80e09baa3d03acd610f8cbdfb50aeb
diff --git a/roles/cord-profile/defaults/main.yml b/roles/cord-profile/defaults/main.yml
index e139397..e94f4cf 100644
--- a/roles/cord-profile/defaults/main.yml
+++ b/roles/cord-profile/defaults/main.yml
@@ -139,3 +139,5 @@
 # used in carrierethernet-*.yaml.j2
 carrierethernet_domainid_prefix: "{{ site_name }}"
 
+# used in platform-install / roles/cord-profile/templates/docker-compose.yml.j2
+use_elasticstack: False