community/edk2: update license
License was changed in this commit: https://github.com/tianocore/edk2/commit/304bff7223a89ef87d77b3f77e195cb44a45e30b
License was changed in this commit: https://github.com/tianocore/edk2/commit/304bff7223a89ef87d77b3f77e195cb44a45e30b