Add FORMULAS_REVISION parameter to models tests

Change-Id: Id830894b265e9c7943ebc4ca690f0fb7e347e9ea
diff --git a/jenkins/client/job/salt-models/tests.yml b/jenkins/client/job/salt-models/tests.yml
index 4ed1f62..f67eb66 100644
--- a/jenkins/client/job/salt-models/tests.yml
+++ b/jenkins/client/job/salt-models/tests.yml
@@ -49,6 +49,9 @@
               FORMULAS_SOURCE:
                 type: string
                 default: "{{formulas_src}}"
+              FORMULAS_REVISION:
+                type: string
+                default: "{{formulas_revision}}"
               SYSTEM_GIT_URL:
                 type: string
                 default: ""