ovsdb: jsonrpc-server: Fix the DSCP value in default options.

The DSCP_DEFAULT is not zero and is a value that supposed
to be used for all connections by default.

Fixes: f125905cdd3d ("Allow configuring DSCP on controller and manager connections.")
Acked-by: Mike Pattrick <mkp@redhat.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>

ovsdb/jsonrpc-server.c

@@ -215,6 +215,7 @@ ovsdb_jsonrpc_default_options(const char *target)
     options->probe_interval = (stream_or_pstream_needs_probes(target)
                                ? RECONNECT_DEFAULT_PROBE_INTERVAL
                                : 0);
+    options->dscp = DSCP_DEFAULT;
     return options;
 }