New issue by L3Nya on void-packages repository

https://github.com/void-linux/void-packages/issues/27682

Description:
<!-- Don't request update of package. We have a script for that. https://alpha.de.repo.voidlinux.org/void-updates/void-updates.txt . However, a quality pull request may help. -->
### System

* xuname:  
Void 5.5.18_1 x86_64-musl AuthenticAMD notuptodate rFFF
* package:  
  *affected package(s) including the version*: ``linux-firmware-20201218_1
``

### Expected behavior
symlinks created according to WHENCE file

### Actual behavior
symlinks aren't created

### Steps to reproduce the behavior
1. install `linux-firmware`(or `linux-firmware-nvidia`/`linux-firmware-intel`/`linux-firmware-network`) package
2. check for symlinks(for example `/usr/lib/firmware/nvidia/gp108/acr -> /usr/lib/firmware/nvidia/gp102/acr`)
3. find out they do not exist

To fix you just need to add symlink commands