Update to autotools used by binutils

[Alan Modra]

On Tue, Mar 10, 2020 at 08:16:10PM +0100, Christian Eggers wrote:
> Hi Alan,
> 
> your changelog mentions several regenerated files, but the patch misses them.
> I had to run aclocal and automake manually in order to get rid of calls to
> aclocal-1.11.

We normally don't post regenerated files for binutils and gcc.  I did
the same for this patch without checking whether the cgen project had
a policy in this regard.

Patch now committed.

-- 
Alan Modra
Australia Development Lab, IBM