Can't set architecture to m32c on m32c-elf-gdb.

[Nick Clifton]

Hi Masaki,

> Hello Nick,
> 
> Though I've not tried your patch yet,  it also will works fine.
> 
> But I feel my patch is better.
> Renesas is planning to ship R32C series. They have a lot of extensions but basically based on M32C.
> R32C aims automovice areas, so it's possible they have some custom variations.
> I think it's better to specify architecture by printable name like cpu-arm.c

But that is what my patch does.  It fixes the scanning code in the bfd 
library so that when the user enters:

   set architecture m32c

in gdb it will correctly locate the m32c architecture and not the m16c 
architecture as it was doing previously.

Cheers
   Nick