Use correct slave label based on deploy type

Change-Id: If4e87b417a4164b2a58ef6e7fe84e281ebec574d
diff --git a/jjb/cloud-infra/cloud-infra-periodic-engine.yaml b/jjb/cloud-infra/cloud-infra-periodic-engine.yaml
index cbd866e..19fc3f1 100644
--- a/jjb/cloud-infra/cloud-infra-periodic-engine.yaml
+++ b/jjb/cloud-infra/cloud-infra-periodic-engine.yaml
@@ -90,7 +90,7 @@
       - nordix-gerrit-parameters
       - label:
           name: SLAVE_LABEL
-          default: 'vpod-deploy-city'
+          default: '{slave-label}'
           description: 'Slave label to schedule this job on. All slaves have Ubuntu1604 no matter what distro target nodes use'
       - string:
           name: DISTRIBUTION