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

rtl8812au-dkms: update to 20210427
https://github.com/void-linux/void-packages/pull/31120

Description:
add support for kernel 5.12

#### Have the results of the proposed changes been tested?
- [x ] I use the packages affected by the proposed changes on a regular basis and confirm this PR works for me
- [ ] I generally don't use the affected packages but briefly tested this PR