sept: Disallow sept if improper BCT to avoid black screen

nyx/nyx_gui/hos/sept.h

@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2019 CTCaer
+ * Copyright (c) 2019-2021 CTCaer
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -19,7 +19,8 @@
 
 #include <utils/types.h>
 
-void check_sept();
+#define SEPT_PRI_ENTRY  0x40010340
+
 int reboot_to_sept(const u8 *tsec_fw, u32 kb);
 
 #endif