Move Memset from vboot_reference to vbexport/u-boot

All memory operations (except the "safe ones") live in the firmware
so the fast operations can be used. Except Memset. This CL changes that
problem.

This CL needs https://gerrit.chromium.org/gerrit/#change,10992 and a
similar change in H2C.

BUG=chrome-os-partner:6313
TEST=run coreboot/u-boot on Stumpy

Change-Id: Ic961ebbb45470c8fc1316490b902759dcf221deb
Reviewed-on: https://gerrit.chromium.org/gerrit/10993
Tested-by: Stefan Reinauer <reinauer@chromium.org>
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
3 files changed