Add stage IAM so script can self-identify during a job run

Change-Id: Icc14d73e87e39c8b663d58f4ac86bc2cb5f22731
diff --git a/jjb/pipeline/voltha/voltha-2.8/bbsim-tests.groovy b/jjb/pipeline/voltha/voltha-2.8/bbsim-tests.groovy
index 85683db..fadd09b 100755
--- a/jjb/pipeline/voltha/voltha-2.8/bbsim-tests.groovy
+++ b/jjb/pipeline/voltha/voltha-2.8/bbsim-tests.groovy
@@ -24,10 +24,28 @@
 def clusterName = "kind-ci"
 
 def execute_test(testTarget, workflow, testLogging, teardown, testSpecificHelmFlags = "") {
-  def infraNamespace = "default"
-  def volthaNamespace = "voltha"
-  def logsDir = "$WORKSPACE/${testTarget}"
-  stage('Cleanup') {
+    def infraNamespace = "default"
+    def volthaNamespace = "voltha"
+    def logsDir = "$WORKSPACE/${testTarget}"
+
+    stage('IAM')
+    {
+	script
+	{
+	    String iam = [
+		'ci-management',
+		'jjb',
+		'pipeline',
+		'voltha',
+		'voltha-2.8',
+		'bbsim-tests.groovy'
+	    ].join('/')
+            println("** ${iam}: ENTER")
+            println("** ${iam}: LEAVE")
+	}
+    }
+
+    stage('Cleanup') {
     if (teardown) {
       timeout(15) {
         script {