vboot: add missing assert.h include

BUG=none
TEST=make
BRANCH=none

Signed-off-by: David Benjamin <davidben@chromium.org>
Change-Id: I4193d01bf9e65aff1567d4d00ae38811b61ad4c0
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/2252761
Commit-Queue: Joel Kitching <kitching@chromium.org>
Reviewed-by: Joel Kitching <kitching@chromium.org>
1 file changed