Add Initial Gandof gesture's configuration

This CL adds the first Gandof touchpad configuration, complete with a
pressure calibration, and tweaks for a couple of issues I was seeing:
  1. Taps were being missed due to low pressure readings, so I
     decreased the min tap pressure requirement a bit
  2. Palms cause pointer movement, so the palm pressure cutoff has
     been reduced a bit too.

BUG=chrome-os-partner:41085
TEST=manually tested on Gandof

Change-Id: Ied333fd0cb46629b48dcb7920059beda4477f950
Signed-off-by: Charlie Mooney <charliemooney@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/283080
Reviewed-by: Dennis Kempin <denniskempin@google.com>
(cherry picked from commit 1de9157b9d56e5bba84fc43809c0d4d77302945d)
Reviewed-on: https://chromium-review.googlesource.com/283210
1 file changed