Bug#1061219: Please upgrade to llvm-toolchain-17

[Petter Reinholdtsen <pere@hungry.com>]

[Sylvestre Ledru]
> As part of the effort to limit the number of llvm packages in the
> archive, it would be great if you could upgrade to -17.
>
> This package depends on 14.

I would be happy to, but...

I tried switching to a newer llvm package, but it seem to me the
libmlir-14-dev and mlir-14-tools content changed in a way that break the
build with newer llvm versions.  Not sure how to work around this, not
skilled enough with cmake to figure out a solution so far.

-- 
Happy hacking
Petter Reinholdtsen