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-primary/src/fs_utils.c

@@ -1,5 +1,5 @@
 #include "fs_utils.h"
-#include "hwinit.h"
+#include "mc.h"
 #include "lib/printk.h"
 #include "lib/fatfs/ff.h"