tpm2-device: SPDX header contradicts Cargo.toml and README

Hi,

tpm2-device 1.0.0 declares "MIT OR Apache-2.0" in both Cargo.toml and the
README, but src/lib.rs, the only source file, carries:

     // SPDX-License-Identifier: GPL-3-0-or-later

Could you please clarify which of the two is intended?

Thanks,
Michel Le Bihan