Packages with optimized code for AVX2 (x86_v3) or AVX (x86_v4) need this code
streams explicitly enabled during the build process (faiss or gpt4all) so its
not possible to use the %{?suse_build_hwcaps_libs} macro.
When doing this, the packages are built, but some final scripts fail cleaning
up the build root fail with the error:
```
[   51s] find: cannot delete '//.build.packages/RPMS/x86_64_v3': Directory not
empty
[   51s] 
```
A failed example can found under:
https://build.opensuse.org/package/show/home:mslacken:ml/faiss_bug
where the two codestream build for AVX2 and AVX512 fail to build.