updating bbsim olt sn

Change-Id: I8f0436a3033ec22b55376149ba22615daf188feb
diff --git a/examples/bbsim-16-latest.yaml b/examples/bbsim-16-latest.yaml
index a1d0cab..5c452db 100644
--- a/examples/bbsim-16-latest.yaml
+++ b/examples/bbsim-16-latest.yaml
@@ -59,7 +59,7 @@
         outer_tpid: "0x8100"
         uplink: "65536"
         nas_id: "NAS_ID"
-        serial_number: "bbsim.voltha.svc:50060"
+        serial_number: "BBSIMOLT000"
         technology: xgspon
       requirements:
         - volt_service: