fix: use defined typedefs in defining app_entry

[Savestate2A03]

Addresses this issue with types not being correct:

rei wolf@DESKTOP-8JOF1RA MSYS /c/dev/Nintendont
$ ./'Incremental Build.bat'

C:\dev\Nintendont>make all windows=1

Building Multi-DOL loader

make -C multidol
make[1]: Entering directory '/c/dev/Nintendont/multidol'
 ASSEMBLE    crt0.S
 COMPILE     cache.c
 COMPILE     main.c
 COMPILE     global.c
 COMPILE     apploader.c
apploader.c: In function 'Apploader_Run':
apploader.c:118:36: error: passing argument 2 of 'appldr_entry' from incompatible pointer type [-Wincompatible-pointer-types]
  118 |         appldr_entry(&appldr_init, &appldr_main, &appldr_final);
      |                                    ^~~~~~~~~~~~
      |                                    |
      |                                    int (**)(char **, u32 *, u32 *) {aka int (**)(char **, unsigned int *, unsigned int *)}
apploader.c:118:36: note: expected 'int (**)(void)' but argument is of type 'int (**)(char **, u32 *, u32 *)' {aka 'int (**)(char **, unsigned int *, unsigned int *)'}
make[1]: *** [Makefile:40: apploader.o] Error 1
make[1]: Leaving directory '/c/dev/Nintendont/multidol'
make: *** [Makefile:34: multidol] Error 2

If I'm missing anything feel free to comment.