Adapting openonu go pipeline to new BBSIM

Change-Id: Ie5360d1df588b1796e6d9b7467e62a9273376a2a
diff --git a/jjb/pipeline/voltha-openonu-go-tests.groovy b/jjb/pipeline/voltha-openonu-go-tests.groovy
index a413f36..447c287 100644
--- a/jjb/pipeline/voltha-openonu-go-tests.groovy
+++ b/jjb/pipeline/voltha-openonu-go-tests.groovy
@@ -36,7 +36,8 @@
     WITH_BBSIM="y"
     DEPLOY_K8S="y"
     VOLTHA_LOG_LEVEL="DEBUG"
-    CONFIG_SADIS="n"
+    CONFIG_SADIS="external"
+    BBSIM_CFG="configs/bbsim-sadis-att.yaml"
     ROBOT_MISC_ARGS="-d $WORKSPACE/RobotLogs"
   }