CHROMIUM: cros-ec: Add firmware update for dingdong & hoho.

Signed-off-by: Todd Broch <tbroch@chromium.org>

BUG=chrome-os-partner:33947
TEST=Manual on Samus.
Verify PD update succeeds and newly-flashed hash matches contents for
dingdong & hoho.

Change-Id: I9a4a3b37e91afacfb932b8d13e33cb776a835ad6
Reviewed-on: https://chromium-review.googlesource.com/234186
Reviewed-by: Vincent Palatin <vpalatin@chromium.org>
Reviewed-by: Shawn N <shawnn@chromium.org>
Tested-by: Todd Broch <tbroch@chromium.org>
Reviewed-by: Gwendal Grignou <gwendal@chromium.org>
Commit-Queue: Todd Broch <tbroch@chromium.org>
2 files changed