adding test argument to bbsim helm test

Change-Id: I7af938bdb8ac35356d5b21dd4f90f278fbb0b1c0
diff --git a/bbsim/templates/tests/test-bbsim.yaml b/bbsim/templates/tests/test-bbsim.yaml
index 9024bf3..93d30d0 100644
--- a/bbsim/templates/tests/test-bbsim.yaml
+++ b/bbsim/templates/tests/test-bbsim.yaml
@@ -33,9 +33,9 @@
           value: 'xos-chameleon'
         - name: SERVER_PORT
           value: '9101'
-      command: ["robot", "-d", "Log", "-T", "-v", "{{ .Values.onus_per_pon_port }}", "WorkflowValidations/BBSIM.robot"]
+      command: ["robot", "-d", "Log", "-T", "-v", "number_of_onus:{{ .Values.onus_per_pon_port }}", "WorkflowValidations/BBSIM.robot"]
   volumes:
     - name: log-volume
       hostPath:
         path: /tmp/helm_test_bbsim_logs_{{ dateInZone "20060102T030405.00Z" (now) "UTC"  }}
-        type: DirectoryOrCreate
\ No newline at end of file
+        type: DirectoryOrCreate