[PATCH 6/7] tools: add 7z host package

[Sander Vanheule]

On Sat, 2022-07-23 at 22:53 +0200, Jan Hoffmann wrote:
> Add the 7zr command line tool, which is a version of the 7z application
> that only supports 7z archives.
> 
> 7z is one of the two compression formats supported in H3C firmware
> images (the alternative would be ARJ).
> 
> (Alternatively, the 7zr command line tool could also be built from a
> current version of the public-domain LZMA SDK. That would require
> repackaging the source package, as it is only provided in 7z format.)
> 
> Signed-off-by: Jan Hoffmann <jan at 3e8.eu>

This caused builds to fail on systems with GCC 12 (Arch, Fedora 36).

Pushed out a fix by bumping the package to version 22.01 (released two weeks
ago) with commit 101190419969 ("tools: bump 7z package to 22.01"). Thanks to
Tomasz for pointing out that the latest version would fix the issue.

Best,
Sander