openflow_input: add BSN extensions to OF 1.4
I left out the following extensions that are no longer used or have been
superceded by the standard:
- bsn_disable_split_horizon_check
- bsn_role_status
- bsn_global_vrf_allowed
diff --git a/openflow_input/bsn_egr_port_group_id b/openflow_input/bsn_egr_port_group_id
index a237b49..3ba5462 100644
--- a/openflow_input/bsn_egr_port_group_id
+++ b/openflow_input/bsn_egr_port_group_id
@@ -30,6 +30,7 @@
#version 3
#version 4
+#version 5
/*
* Egress port group ID for SwitchLight