[patch binutils]: Add --preprocessor-arg option to windres tool

[Nick Clifton]

Hi Kai,

> Ok, added documentation and NEWS entry for this new option.
>
> Ok for apply?

Yes - with two small changes:

   1) Add entries in the ChangeLog for the additions to NEWS and 
binutils.texi.

   2) Please could you change the description of the --preprocessor-arg 
option so that it is a little clearer.  I suggest:

   @item --preprocessor-arg @var{option}
   When @command{windres} reads an @code{rc} file, it runs it through
   the C preprocessor first.  This option may be used to specify
   additional text to be passed to preprocessor on its command line.
   This option can be used multiple  times to add multiple options to
   the preprocessor command line.


Cheers
   Nick