use heat template for gerrit for mcp heat labs

Change-Id: If4b4f8b3608629f12ab3540b44b8d2e1593aa936
diff --git a/jenkins/client/job/deploy/lab/mk/init.yml b/jenkins/client/job/deploy/lab/mk/init.yml
index 17dca28..2a32dc6 100644
--- a/jenkins/client/job/deploy/lab/mk/init.yml
+++ b/jenkins/client/job/deploy/lab/mk/init.yml
@@ -37,7 +37,7 @@
               # heat
               HEAT_TEMPLATE_URL:
                 type: string
-                default: "git@github.com:Mirantis/mk-lab-heat-templates.git"
+                default: "${_param:jenkins_gerrit_url}/mk/heat-templates"
               HEAT_TEMPLATE_CREDENTIALS:
                 type: string
                 default: "gerrit"