[patch/RFA] coffcode.h needs to include libiberty.h

[Eli Zaretskii]

> Date: Sat, 05 Sep 2009 17:40:02 +0100
> From: Dave Korn <dave.korn.cygwin@googlemail.com>
> CC: Joel Brobecker <brobecker@adacore.com>, binutils@sourceware.org, 
>  gdb-patches@sourceware.org
> 
> Eli Zaretskii wrote:
> 
> > OK, waiting for approval, then.
> 
>   This is OK.  Please go ahead.

Thanks, committed.