reactor: Mark .configure() private

It's only called from inside reactor's friend initialization helpers

Signed-off-by: Pavel Emelyanov <[email protected]>

include/seastar/core/reactor.hh

@@ -428,6 +428,7 @@ private:
  future<temporary_buffer<char>>
  do_recv_some(pollable_fd_state& fd, internal::buffer_allocator* ba);
 
+ void configure(const reactor_options& opts);
  int do_run();
 public:
  explicit reactor(std::shared_ptr<smp> smp, alien::instance& alien, unsigned id, reactor_backend_selector rbs, reactor_config cfg);
@@ -469,8 +470,6 @@ public:
  /// @private
  void update_shares_for_queues(internal::priority_class pc, uint32_t shares);
 
- void configure(const reactor_options& opts);
-
  server_socket listen(socket_address sa, listen_options opts = {});
 
  future<connected_socket> connect(socket_address sa);