Change the IRQ interface to allow adding events.
Move code to send the lightbar sequence from gesture.c to motion task.
TEST=compile, works on Ryu.
BRANCH=smaug
BUG=chrome-os-partner:44754
Change-Id: I981ea123ebef0e8e3d6aa320eade89f10e83b6fc
Signed-off-by: Gwendal Grignou <gwendal@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/296822
Reviewed-by: Alec Berg <alecaberg@chromium.org>