refactor: Only locate OVMF on bookworm for now
To the extent that there are developers on other distributions, let's add any missing OVMF locations then (so they can confirm they work). For example, if an Arch user showed up today they would likely request
/usr/share/edk2/x64/OVMF_CODE.fd
/usr/share/edk2/x64/OVMF_VARS.fd
as documented in https://archlinux.org/packages/extra/any/edk2-ovmf/.
Credit: helpful explanations about OVMF from kai.
Closes #21 (closed).
Edited by Rasmus Dahlberg