vboot: remove OffsetOf function

Should use vboot2 equivalent instead: vb2_offset_of

BUG=b:124141368
TEST=make clean && make runtests
BRANCH=none

Change-Id: I64afc88477cbb615a661833f45761030c55fcdf6
Signed-off-by: Joel Kitching <kitching@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/1675868
Tested-by: Joel Kitching <kitching@chromium.org>
Commit-Queue: Joel Kitching <kitching@chromium.org>
Reviewed-by: Julius Werner <jwerner@chromium.org>
5 files changed