Decompile sleep.c and printutils.c

- Decompile sleep.c (OK)
- Decompile printutils.c (OK)
- Fix 1 non-matching in z_room.c
- Get rid of some magic numbers

src/libultra_boot_O1/initialize.c

@@ -8,7 +8,7 @@ typedef struct {
     u32 ins_0C; // nop
 } struct_exceptionPreamble;
 
-u64 osClockRate = 62500000;
+u64 osClockRate = OS_CLOCK_RATE;
 u32 osViClock = VI_NTSC_CLOCK;
 u32 __osShutdown = 0;
 u32 __OSGlobalIntMask = 0x003FFF01;