This patch enables retrieval of factory configuration data from
Google TPM devices (both Cr50 and Ti50).
This patch utilizes vendor-specific command
TPM2_CR50_SUB_CMD_GET_FACTORY_CONFIG (68).
The factory config space is a 64-bit, one-time programmable.
For the unprovisioned one, the read will be 0x0.
BUG=b:317880956
TEST=Able to retrieve the factory config from google/screebo.
Change-Id: Ifd0e850770152a03aa46d7f8bbb76f7520a59081
Signed-off-by: Subrata Banik <subratabanik@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/79736
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
0f90c5d5f9