fusee: Complete re-write of the hardware initialization code:

- Updated code to match hekate's;
- Improved nxboot (now boots firmwares 2.x successfully);
- Temporarily disabled built-in boot system module support;
- Fixed multiple bugs.

fusee/fusee-secondary/src/panic.c

@@ -1,8 +1,8 @@
 #include "panic.h"
+#include "di.h"
 #include "pmc.h"
 #include "fuse.h"
 #include "utils.h"
-#include "hwinit.h"
 
 static uint32_t g_panic_code = 0;