Implement Auto Reboot Timer (#518) (#519)

* Implement Auto Reboot Timer (#518)

* Use > to check for values below -1

* Use TimeoutHelper and accept MS

* Add fatal_auto_reboot_interval into config (commented)

* Check for 0

stratosphere/fatal/source/fatal_config.hpp

@@ -29,6 +29,8 @@ struct FatalConfig {
     const char *error_msg;
     const char *error_desc;
     const char *quest_desc;
+    u64 fatal_auto_reboot_interval;
+    bool is_auto_reboot_enabled;
 };
 
 IEvent *GetFatalSettingsEvent();