When MRC_SAVE_HASH_IN_TPM is selected, we can just use the TPM hash to
verify the MRC_CACHE data. Thus, we don't need to calculate the
checksum anymore in this case.
BUG=b:150502246
BRANCH=None
TEST=make sure memory training still works on nami
Change-Id: I1db4469da49755805b541f50c7ef2f9cdb749425
Signed-off-by: Shelley Chen <shchen@google.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/46515
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>