There's a closed pull request on the void-packages repository

New package: libmali-bifrost-gbm-r6p0.01rel0
https://github.com/void-linux/void-packages/pull/23269

Description:
mali graphics drivers. This is somewhat of a tricky package as it includes files that conflict with mesa and other packages. Debian splits their packages so it's less of an issue for them. I based this off of https://github.com/rockchip-linux/libmali/blob/master/debian/control.

Please let me know if specific changes around provides and shlibs are needed. I'm running this package on my device and it's working but I obviously want this package to be void compliant.

To be sure, there are multiple variants of "mali" and also multiple variants within the bifrost set of drivers. For my purposes, I'm only need -gbm for framebuffer workloads. If there is a request for wayland and x11 then I suppose we can make subpackages.

https://github.com/rockchip-linux/libmali/tree/master/lib/aarch64-linux-gnu