Instead of taking pointers and back-calculating the
proper offset perform writes in terms of the offsets
within the elog region in flash.
BUG=chrome-os-partner:55932
Change-Id: I5fd65423f5a6e03825c788bc36417f509b58f64d
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/16095
Reviewed-by: Furquan Shaikh <furquan@google.com>
Tested-by: build bot (Jenkins)
052a995567