Add OR16 and OR32 to ieeefp.h

[J. Johnston]

Joel Sherrill wrote:
> 
> 2000-12-01      Joel Sherrill <joel@OARcorp.com>
> 
>         * libc/include/ieeefp.h: Added entries for OpenCores CPUs.
> 
> --

Patch checked in.

-- Jeff J.