Update the chromeec submodule to current Chromium TOT. Change-Id: Ia3d913703fdea0ece02074d8e2d4b30d97e9a97c Signed-off-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: https://review.coreboot.org/17179 Tested-by: build bot (Jenkins) Reviewed-by: Aaron Durbin <adurbin@chromium.org>