message: Add length to TP logging
diff: @@ -172,8 +172,9 @@ impl ExtensionHandler for TransportParametersHandler {
  fn handle(&mut self, msg: HandshakeMessage, d: &[u8]) -> ExtensionHandlerResult {
  log!(
  LogLevel::Debug,
  - "Handling transport parameters, msg={:?}",
  - msg
  + "Handling transport parameters, msg={:?} len={}",
  + msg,
  + d.len()
  );
  if !matches!(msg, TLS_HS_CLIENT_HELLO | TLS_HS_ENCRYPTED_EXTENSIONS) {
  return ExtensionHandlerResult::Alert(110); // unsupported_extension
  