Migrate coreboot TPM event log entries to UEFI payload

[miczyg1]

Dasharo version
Any

Dasharo variant
Any

Affected component(s) or functionality
TPM event log

Brief summary
Currently, the coreboot event log entries are not propagated to the UEFI payload so all information what was measured to PCRs is lost when EDK2 TPM drivers kick in. This results in the inconsistent TPM event log with PCRs being returned from UEIF to OS.

How reproducible1
100%

How to reproduce

Steps to reproduce the behavior:

1. Use tpm2 tools event log utility to calculate final PCRs values and compare them to PCR values taken from TPM.

Expected behavior
Calculated PCR values are identical to those read from TPM.

Actual behavior
Calculated PCR values are not identical to those read from TPM.

Screenshots
None

Additional context
None

Solutions you've tried
None

[macpijan]

Seems to be a duplicate of: #455 - which provides more context and discussion already.