Parameterize the JDK distribution

Change-Id: Idcc0f9348ec257bc0382de68422af2b141cec413
diff --git a/jjb/cord-onos-app-publishing.yaml b/jjb/cord-onos-app-publishing.yaml
index e566ef6..4ba0f40 100644
--- a/jjb/cord-onos-app-publishing.yaml
+++ b/jjb/cord-onos-app-publishing.yaml
@@ -28,6 +28,11 @@
          default: 'teo@opennetworking.org, saurav.das@opennetworking.org'
          description: ''
 
+      - string:
+         name: jdkDistro
+         default: '{jdk-distribution}'
+         description: 'Distribution of the JDK to use with update-java-alternatives'
+
     node: 'ubuntu16.04-basebuild-1c-2g'
     project-type: pipeline
     concurrent: true