vboot: Change VbExEc implementations to support RO update
This change will be used to support EC-RO software sync by allowing for
access to the readonly region of firmware. Currently only the writable
section is accessed by vboot using VB_SELECT_FIRMWARE_A and B.
BUG=chrome-os-partner:48703
BRANCH=none
TEST=built on jerry and check that the RO hash can be read and the image
can be updated.
CQ-DEPEND=CL:319185,CL:320425,CL:320598
Change-Id: Ic3942d86b65da3123798cfd11a78056f5dab6699
Signed-off-by: Mary Ruthven <mruthven@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/319213
Reviewed-by: Randall Spangler <rspangler@chromium.org>
4 files changed
