ams: replace sept with tsec firmware (#1594)

* ams: replace sept with tsec firmware

This replaces sept with a custom tsec key derivation firmware.

NOTE: This does not use any TSEC exploits whatsoever; it is a well-signed
TSEC binary assembled with envyas and signed with the real cauth key.

For more details, contact SciresM#0524.

* fusee: only set SBK if it's readable

fusee/fusee-secondary/src/kernel_patches.c

@@ -21,12 +21,6 @@
 #include "kernel_patches.h"
 #include "ips.h"
 
-#define u8 uint8_t
-#define u32 uint32_t
-#include "kernel_ldr_bin.h"
-#undef u8
-#undef u32
-
 #define MAKE_BRANCH(a, o) 0x14000000 | ((((o) - (a)) >> 2) & 0x3FFFFFF)
 #define MAKE_NOP 0xD503201F