veyron_*: add servo overlays

BUG=chrome-os-partner:36422
TEST=None
BRANCH=None

Change-Id: I184bedd222474f850025eea08ca9d47094d4bdc4
Reviewed-on: https://chromium-review.googlesource.com/246610
Reviewed-by: Katie Roberts-Hoffman <katierh@chromium.org>
Tested-by: Gediminas Ramanauskas <gedis@chromium.org>
Commit-Queue: Gediminas Ramanauskas <gedis@chromium.org>
6 files changed