vboot2: new data structures

These structures allow for simplication and feature expansion in
vboot.  They are NOT backwards-compatible with old vboot1 structs.
This CL simply adds the new structs and unit tests for struct packing;
future CLs will add support for them in the firmware library and

TEST=VBOOT2=1 make runtests

Change-Id: I22532acf985dd74316bd30f17e750f993b6c53d7
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/224820
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
6 files changed