New review comment by ahesford on void-packages repository

https://github.com/void-linux/void-packages/pull/40871#discussion_r1037342532

Comment:
Can you move these to

```
/usr/libexec/initramfs-tools/kernel-hook-postinst
/usr/libexec/initramfs-tools/kernel-hook-postrm
```
to keep the same form as `mkinitcpio` and `dracut`?