Revert "drivers/mrc_cache: Don't compute checksum if TPM hash is used"

This reverts commit f83b7d494e3ceb6bec11027ae5f21999ee5ad196.

It turns out we have tests which use `futility validate_rec_mrc` to
validate the MRC cache, which includes verifying the data checksum.
Revert this to allow the tests to pass while we figure out how to fix
this.

BUG=b:245277259, b:242667207
TEST=None

Signed-off-by: Reka Norman <rekanorman@chromium.org>
Change-Id: Id913d00584444c21cb94668bdc96f4de51af7cee
Reviewed-on: https://review.coreboot.org/c/coreboot/+/67432
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kangheui Won <khwon@chromium.org>
Reviewed-by: Tim Wawrzynczak <twawrzynczak@chromium.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
diff --git a/src/drivers/mrc_cache/mrc_cache.c b/src/drivers/mrc_cache/mrc_cache.c
index b2d2e4b..473d78c 100644
--- a/src/drivers/mrc_cache/mrc_cache.c
+++ b/src/drivers/mrc_cache/mrc_cache.c
@@ -693,10 +693,10 @@
 		.signature = MRC_DATA_SIGNATURE,
 		.data_size = size,
 		.version = version,
+		.data_checksum = compute_ip_checksum(data, size),
 	};
-	if (!CONFIG(MRC_SAVE_HASH_IN_TPM))
-		md.data_checksum = compute_ip_checksum(data, size);
-	md.header_checksum = compute_ip_checksum(&md, sizeof(md));
+	md.header_checksum =
+		compute_ip_checksum(&md, sizeof(md));
 
 	if (CONFIG(MRC_STASH_TO_CBMEM)) {
 		/* Store data in cbmem for use in ramstage */