Fix salt url

Change-Id: I69b706018dc818697ddbe97a256d8578cf2be085
diff --git a/jenkins/client/job/deploy/k8s_control.yml b/jenkins/client/job/deploy/k8s_control.yml
index d2594c4..3fdef11 100644
--- a/jenkins/client/job/deploy/k8s_control.yml
+++ b/jenkins/client/job/deploy/k8s_control.yml
@@ -20,10 +20,11 @@
             TARGET_MINIONS:
               type: string
               default: "E@k8s-ctl01.*"
+              description: "Salt compound target to match nodes to be updated [*, G@osfamily:debian]."
             # salt master
             SALT_MASTER_CREDENTIALS:
               type: string
               default: "salt"
             SALT_MASTER_URL:
               type: string
-              default: ""
+              default: "${_param:jenkins_salt_api_url}"