UPSTREAM: google/eve: Enable ACPI keyboard backlight

Enable the ACPI interface to EC driven keyboard backlight.

BUG=chrome-os-partner:61464
BRANCH=none
TEST=manual testing on P1 system

Original-Change-Id: I13d96c13d7db726b1e8289131db65104bd302efe
Original-signed-off-by: Duncan Laurie <dlaurie@chromium.org>

Change-Id: Iab315a2b38c6f10c4a4ff15ebde2a6a237e8637f
Signed-off-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/430294
Commit-Ready: Duncan Laurie <dlaurie@google.com>
Tested-by: Duncan Laurie <dlaurie@google.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
1 file changed