Do a fresh cluster setup of ONOS before running the next robot controller cluster test case.

Change-Id: I1d02f0f22e5243784befd1ed1d5aad2123d7a955
diff --git a/src/test/robot/cluster_controller.robot b/src/test/robot/cluster_controller.robot
index e2a72d7..ddc867d 100644
--- a/src/test/robot/cluster_controller.robot
+++ b/src/test/robot/cluster_controller.robot
@@ -16,11 +16,13 @@
 
 Verify Onos Single Controller Restart Functionality
   [Documentation]  Verify ONOS cluster by restarting the same controller
+  Cord Setup
   ${rc}=  Run Cord Tester  cluster:cluster_exchange.test_cluster_single_controller_restarts
   Should Be Equal As Integers  ${rc}  0
 
 Verify Onos Cluster Restart Functionality
   [Documentation]  Verify ONOS cluster by restarting the entire cluster
+  Cord Setup
   ${rc}=  Run Cord Tester  cluster:cluster_exchange.test_cluster_restarts
   Should Be Equal As Integers  ${rc}  0