vboot: Clean up headers

Minor tidying; no functional changes.

BUG=chromium:611535
BRANCH=none
TEST=make runtests; emerge-kevin coreboot depthcharge

Change-Id: I44c816de67025b83c9e46db54fb5427c684bbfef
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/404921
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
2 files changed