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/code/code_800D31A0.c

@@ -9,7 +9,7 @@ u32 D_8012DBC0 = false;
 void func_800D31A0() {
     osSyncPrintf(VT_FGCOL(RED) "\n**** Freeze!! ****\n" VT_RST);
     while (true) {
-        func_800FF4AC(1000); // msleep
+        Sleep_Msec(1000);
     }
 }