Verifying the "boot_aggregate" requires reading the TPM PCRs for each of
the TPM banks. In test environments without a physical TPM, a software
TPM may be used, but requires initializing the TPM PCRs. By walking and
replaying the TPM event log, a software TPM may be properly initialized.
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
