Update binutils-2.23.2 patch for newer Texinfo

With some newer versions of Texinfo (>=5), binutils has invalid commands
within its documentation.  Correct this in order to avoid errors like:

config.status: creating po/Makefile
../../../bfd/doc/bfd.texinfo:325: unknown command `colophon'
../../../bfd/doc/bfd.texinfo:336: unknown command `cygnus'
make[3]: *** [bfd.info] Error 1