This option that adds new hardware support appeared after the 5.17 release.
* gnu/packages/aux-files/linux-libre/5.17-arm.conf,
gnu/packages/aux-files/linux-libre/5.17-arm64.conf,
gnu/packages/aux-files/linux-libre/5.17-i686.conf,
gnu/packages/aux-files/linux-libre/5.17-x86_64.conf: Enable support for Realtek
Ethernet switch chips.