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

linux-firmware: move all mediatek WLAN/BT drivers to -network subpkg
https://github.com/void-linux/void-packages/pull/43516

Description:
based on https://github.com/chimera-linux/cports/blob/339c0eef5be61397707170c6789e09fa4c3b5810/main/firmware-linux/template.py#L83-L86

this shouldn't break anything because `linux-firmware` depends on `linux-firmware-network` already

fixes #43515 
fixes void-linux/void-mklive#224

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#### Testing the changes
- I tested the changes in this PR: **briefly** (the intended packages have the intended files)