sysutils/edk2: enable TPM on bhyve

bhyve gained support for TPM emulation in the upcoming FreeBSD 14.0. The
firmware has to setup the TPM to make it useable for the OS.

Reviewed by: manu
Approved by: manu
Sponsored by: Beckhoff Automation GmbH & Co. KG
Differential Revision: https://reviews.freebsd.org/D41868