Fixed warning + allow cli arguments on Haiku

[kwyxz]

Description

Since RA was ported to Haiku, command-line arguments have been broken and I never took the time to investigate this. It turns out this snippet is the problem:

   if (info->environ_get)
      info->environ_get(rarch_argc_ptr,
            rarch_argv_ptr, info->args, wrap_args);

This goes beyond my abilities and just skipping this piece of code (on Haiku that is) solves the immediate issue. Of course if anybody more skilled feels like taking a shot at it, it'll be more then appreciated. The objective is to allow ES-DE to start RA with the appropriate core, now that ES-DE was ported to Haiku.

Also I accidentally caused a new warning in #16881 so the small fix to retroarch.c resolves this.

Related Pull Requests

#16881 caused this warning :

CC retroarch.c
retroarch.c: In function ‘command_event’:
retroarch.c:3095:4: warning: enumeration value ‘CMD_EVENT_ADD_TO_PLAYLIST’ not handled in switch [-Wswitch]
 3095 |    switch (cmd)
      |    ^~~~~~