[PATCH, nds32] Exclude building gdb for nds32*-*-* target.

[Joel Brobecker]

> > 2014-09-05  Chung-Ju Wu  <jasonwucj@gmail.com>
> >
> >     * configure.ac (nds32*-*-*): Disable gdb.
> >     * configure: Regenerated.
> It looks like the part for not building gdb for or1k*-*-rtems* gets moved
> by this patch.  I know there was an issue with the initial submission of
> that change.
> 
> Your patch appears to correct that also. I thought the properly regenerated
> configure had been committed. But I guess not.
> 
> I am OK with the patch since or1k-rtems is in the same place but wanted
> to note that the generated file had extra stuff in it for a good reason.

We really should regenerate configure first, and then apply Chung-Ju's
patch next. There will come a day when we will be reverting that
patch, since hopefully GDB will be building for that target, one day.
We don't want the revert to accidently also revert the bits that
that resync configure with present-day configure.ac.

-- 
Joel