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

https://github.com/lemmi/void-packages rpi-kernel-btrfs
https://github.com/void-linux/void-packages/pull/46522

rpi-kernel: make btrfs built-in module
This allows booting from btrfs partitions. Adds around 120kB to the uncompressed package size.

#### Testing the changes
- I tested the changes in this PR: **briefly**


- I built this PR locally for these architectures (if supported. mark crossbuilds):
  - aarch64-musl (Raspberry PI 3 Model A+) 



A patch file from https://github.com/void-linux/void-packages/pull/46522.patch is attached