cloud-infra: Reconfigure slave labels

Change-Id: Ife8a096724b3789c24bfa96b179e7fb227acc012
diff --git a/jjb/cloud-infra/cloud-infra-verify-testfw.yaml b/jjb/cloud-infra/cloud-infra-verify-testfw.yaml
index 110705c..578da7a 100644
--- a/jjb/cloud-infra/cloud-infra-verify-testfw.yaml
+++ b/jjb/cloud-infra/cloud-infra-verify-testfw.yaml
@@ -55,6 +55,7 @@
     distro:
       - ubuntu1804:
           disabled: 'false'
+          slave-label: vpod-test-ubuntu1804
 
     type:
       - virtual
@@ -83,7 +84,7 @@
       - nordix-gerrit-parameters
       - label:
           name: SLAVE_LABEL
-          default: 'vpod-test-{distro}'
+          default: '{slave-label}'
           description: 'Slave label to schedule this job on. These slaves have cloud infra installed on them.'
       - string:
           name: DISTRO