There is an updated pull request by seitokaichou against master on the void-packages repository

https://github.com/seitokaichou/void-packages master
https://github.com/void-linux/void-packages/pull/13770

[WIP] lilo: add configuration file for kernel hook
Optionally allow the post-install hook to replace /etc/lilo.conf with one that uses the newest kernel. 
Removed the post-install hook.

A patch file from https://github.com/void-linux/void-packages/pull/13770.patch is attached