security/tpm: Fix TCPA log feature

Until now the TCPA log wasn't working correctly.

* Refactor TCPA log code.
* Add TCPA log dump fucntion.
* Make TCPA log available in bootblock.
* Fix TCPA log formatting.
* Add x86 and Cavium memory for early log.

Change-Id: Ic93133531b84318f48940d34bded48cbae739c44
Signed-off-by: Philipp Deppenwiese <zaolin.daisuki@gmail.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/29563
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>

Documentation/security/index.md

@@ -0,0 +1,7 @@
+# Security
+
+This section describes documentation about the security architecture of coreboot.
+
+## Vendor
+
+- [Measured Boot](vboot/measured_boot.md)