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superceded by the standard: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_time b/openflow_input/bsn_time
index 0a955be..d69e538 100644
--- a/openflow_input/bsn_time
+++ b/openflow_input/bsn_time
@@ -33,6 +33,7 @@
// The timestamp must be monotonic (not affected by system time updates).
#version 4
+#version 5
struct of_bsn_time_request : of_bsn_header {
uint8_t version;