vboot: deprecate EC_EFS and EC_SYNC_SLOW flags

The vboot 1 flags are not used in userspace, so they may be
deprecated.  The vboot 2 flags are converted to use compile-time
options instead.

BUG=b:124141368, chromium:1038259
TEST=make clean && make runtests
BRANCH=none

Change-Id: I0bd63a6f4dd0f29d416beacb966c99b16b5efabd
Signed-off-by: Joel Kitching <kitching@google.com>
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/vboot_reference/+/2004256
Reviewed-by: Yu-Ping Wu <yupingso@chromium.org>
Commit-Queue: Joel Kitching <kitching@chromium.org>
Tested-by: Joel Kitching <kitching@chromium.org>
4 files changed