- Enhanced build-libraries.sh to configure and build libnl version 3.2.0, including checks for required tools like flex and bison.
- Updated download_prerequisites.sh to include the download link for libnl.
- Modified README.md to document the addition of libnl and its dependencies.
- Set LIBNL_VER to 3.2.0 in versions.sh for consistency across scripts.
All hardcoded versions are now defined once in versions.sh and sourced
by build-toolchain.sh, download_prerequisites.sh, and build-libraries.sh,
eliminating the need to update multiple files when changing a version.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
