Cyan: add servo overlay

BUG=None
TEST=`sudo servod --board=cyan`

Change-Id: I7732b59c43f00790e1a8ac29b922d57affd294fe
Reviewed-on: https://chromium-review.googlesource.com/270513
Commit-Queue: Bernie Thompson <bhthompson@chromium.org>
Tested-by: Bernie Thompson <bhthompson@chromium.org>
Reviewed-by: Todd Broch <tbroch@chromium.org>
1 file changed