vboot2: Move knowledge of vboot 2.1 data structures inside lib21/

Code which compiles against fwlib2 no longer knows or cares about the
new data structures.  This should shrink fwlib2 a bit.  This is part 3
of 4 changes which split vboot 2.0 struct handling (old vboot1
structs) from vboot 2.1 struct handling (new style structs).

No functional changes; just shuffling around code.

BUG=chromium:423882
BRANCH=none
TEST=make runtests && VBOOT2=1 make runtests (works with/withoug VBOOT2 flag)
     And compile firmware for veyron_pinky.

Change-Id: Ibccd7d1974e07f38b90c19c924ef3b1ffcb77d62
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/233020
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
26 files changed