bogus gcc versoion check

[Jeff Johnston]

Thanks for catching this.  A patch has been made.

-- Jeff J.

Joern Rennecke wrote:
> newlib/libc/include/machine/_default_types.h has this code:
>
> #if defined(__GNUC__) && (__GNUC__ >= 3 ) \
>   && defined(__GNUC_MINOR__) && (__GNUC_MINOR__ > 2 )
> /* GCC >= 3.3.0 has __<val>__ implicitly defined. */
>
> This fails to do the intended version check for gcc 4.0, 4.1 and 4.2 .
>