VOL-1977 Run tests multiple times

Change-Id: I8665d564effeabaa363ca21a01b92f75e6211541
diff --git a/jjb/pipeline/voltha-bbsim-tests.groovy b/jjb/pipeline/voltha-bbsim-tests.groovy
index 0662499..50d160a 100644
--- a/jjb/pipeline/voltha-bbsim-tests.groovy
+++ b/jjb/pipeline/voltha-bbsim-tests.groovy
@@ -148,6 +148,7 @@
            export KUBECONFIG="$(./bin/kind get kubeconfig-path --name="voltha-minimal")"
            export VOLTCONFIG="/home/jenkins/.volt/config-minimal"
            export PATH=$WORKSPACE/kind-voltha/bin:$PATH
+           export ROBOT_MISC_ARGS="-v teardown_device:False"
            make -C $WORKSPACE/voltha/voltha-system-tests sanity-kind || true
            '''
       }