Add telnetd as service to rc.conf.

rtemsbsd/include/rtems/telnetd.h

@@ -87,6 +87,11 @@ typedef struct {
   bool keep_stdio;
 } rtems_telnetd_config_table;
 
+/**
+ * @brief Start the Telnet subsystem with the provided configuration.
+ */
+rtems_status_code rtems_telnetd_start(const rtems_telnetd_config_table* config);
+
 /**
  * @brief Telnet configuration.
  *