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

https://github.com/pbui/void-packages rpi-firmware
https://github.com/void-linux/void-packages/pull/26939

rpi-firmware: update to 20201123.
- Orphan package (suggest @Piraty takes it).

- linux-firmware-network now provides the necessary wifi blobs, so
  rpi-firmware no longer includes them and now depends on
  linux-firmware-network.

  Otherwise the two packages conflict with each other and prevents upgrading.

- I've tested on armv6l and armv7l with a RPI2 and RPI3 both builtin and external wireless devices.

@Piraty @sgn Per our discussion on IRC, I dropped the wifi blobs from this package and for now making it depend on linux-firmware-network.

A patch file from https://github.com/void-linux/void-packages/pull/26939.patch is attached