[kvm-unit-tests] Permitted license for new library

Hello,

I would like to know what licenses are permitted when adding a new library
to kvm-unit-tests (similar to libfdt). Is it enough if the library is
licensed under one of the GPLv2 compatible licenses [1] or are certain
licenses from that list not accepted for kvm-unit-tests?

[1] https://www.gnu.org/licenses/license-list.html#GPLCompatibleLicenses

Thanks,
Alex