Add -X arg to robot

Change-Id: If2d567c4d8066d9b24411431cbf2c2aabe842000
diff --git a/jjb/voltha-e2e.yaml b/jjb/voltha-e2e.yaml
index 76e56b9..3286fbb 100644
--- a/jjb/voltha-e2e.yaml
+++ b/jjb/voltha-e2e.yaml
@@ -437,7 +437,7 @@
 
       - string:
           name: extraRobotArgs
-          default: '-i sanityORDeleteOLT'
+          default: '-i sanityORDeleteOLT -X'
           description: 'Arguments to pass to robot'
 
     project-type: pipeline
@@ -579,7 +579,7 @@
 
       - string:
           name: extraRobotArgs
-          default: '-i sanityORDeleteOLT'
+          default: '-i sanityORDeleteOLT -X'
           description: 'Arguments to pass to robot'
 
     project-type: pipeline
@@ -722,7 +722,7 @@
 
       - string:
           name: extraRobotArgs
-          default: '-e bbsim'
+          default: '-e bbsim -X'
           description: 'Arguments to pass to robot'
 
     project-type: pipeline