[PATCH]: export the bfd elf arch_size

[Michael Snyder]

This is an access function to provide the elf "arch size"
(the difference between a 32-bit and a 64-bit elf file).

By the way, what the heck is the difference between 
bfd-in.h and bfd-in2.h?

2000-05-04  Michael Snyder  <msnyder@seadog.cygnus.com>

        * elf.c (bfd_elf_get_arch_size): New function, return 32 | 64 |
-1.
        * bfd-in.h: Prototype bfd_elf_get_arch_size.
        * bfd-in2.h: Prototype bfd_elf_get_arch_size.