There is a new pull request by CameronNemo against master on the void-packages repository

https://github.com/CameronNemo/void-packages u-boot-menu
https://github.com/void-linux/void-packages/pull/25887

u-boot-menu: update to 0.2
Allow usage of the DEVICETREEDIR extlinux.conf configuration stanza.

A patch file from https://github.com/void-linux/void-packages/pull/25887.patch is attached