Bug#727368: ecl: update config.{sub,guess} for the AArch64 port

[christoph@debian.org (Christoph Egger)]

Hi Matthias!

Matthias Klose <doko at debian.org> writes:
> The package fails to build on arm64 (aarch64-linux-gnu), because the
> config.{guess,sub} files are out of date, and are not updated during
> the build.  If possible, please do not update these files directly,
> but build-depend on autotools-dev instead, and use the tools provided
> by autotools-dev to update these files.

A new ecl is high on my priority list and I'm about to clean up a lot of
stuff in the process which will include automatic config.*
updates. However this will not happen for at least another 2 weeks. So
if you're in a hurry, feel free to NMU the simple fix for untill I get
to it

  Christoph