Fix elf_read_wine_loader_dbg_info() declaration for the !__ELF__ case

[Eric Pouech]

> -unsigned long elf_read_wine_loader_dbg_info(struct process* pcs)
> +BOOL elf_read_wine_loader_dbg_info(struct process* pcs)
>  {
>      return -1;
>  }
we should return FALSE too