Fix: Cisco IOSvL2 cannot be a route server

Author: ipspace

netsim/extra/bgp.session/defaults.yml

@@ -65,6 +65,8 @@ devices:
     rs: True
     rs_client: True
     timers: True
+  iosvl2.features.bgp:
+    rs: False
   nxos.features.bgp:
     allowas_in: True
     as_override: True