In preparation for adding the rollback protection region, we
would like to be able to protect RW region independently from
ALL.
BRANCH=none
BUG=chrome-os-partner:61671
TEST=make BOARD=hammer
Change-Id: I790fee6f038d511bce0f768420141b885e1c8c67
Reviewed-on: https://chromium-review.googlesource.com/444528
Commit-Ready: Nicolas Boichat <drinkcat@chromium.org>
Tested-by: Nicolas Boichat <drinkcat@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>