Add DISTRIB_REVISION parameter to test-mk-cookiecutter-templates jobs

Change-Id: I193149ee61153993c94151a2aac7bf695f794639
diff --git a/jenkins/client/job/salt-models/tests.yml b/jenkins/client/job/salt-models/tests.yml
index 57e15b8..6a80fab 100644
--- a/jenkins/client/job/salt-models/tests.yml
+++ b/jenkins/client/job/salt-models/tests.yml
@@ -273,6 +273,9 @@
               RECLASS_MODEL_BRANCH:
                 type: string
                 default: master
+              DISTRIB_REVISION:
+                type: string
+                default: 'nightly'
               SYSTEM_GIT_URL:
                 type: string
                 default: ""