[Patch ARM/ configury] Add fall-back check for gnu_unique_object

[Ramana Radhakrishnan]

> Ping -  http://gcc.gnu.org/ml/gcc-patches/2012-03/msg00549.html

And now really add Paolo and DJ.

Ramana
>
> regards,
> Ramana
>
>
>>
>> regards,
>> Ramana
>>
>>
>> 2012-03-07  Ramana Radhakrishnan   <ramana.radhakrishnan@linaro.org>
>>
>>       * config.gcc (target_type_format_char): New. Document it. Set it for
>>         arm*-*-* .
>>       * configure.ac (gnu_unique_option): Use target_type_format_char in test.
>>       * configure: Regenerate .