Updated Voltctl Version for voltha-2.8 release jobs
Updated Physical Pod pipelines to use correct pod-configs branch

Change-Id: I6041f9f5d3094283aa01dec5cdd4f0ac081df170
diff --git a/jjb/pipeline/voltha/voltha-2.8/bbsim-tests.groovy b/jjb/pipeline/voltha/voltha-2.8/bbsim-tests.groovy
index 8649916..0f1002e 100755
--- a/jjb/pipeline/voltha/voltha-2.8/bbsim-tests.groovy
+++ b/jjb/pipeline/voltha/voltha-2.8/bbsim-tests.groovy
@@ -211,7 +211,7 @@
           kind get clusters | grep ${clusterName} | wc -l
           """
           if (clusterExists.trim() == "0") {
-            createKubernetesCluster([nodes: 3, name: clusterName])
+            createKubernetesCluster([branch: "${branch}", nodes: 3, name: clusterName])
           }
         }
       }