kunimitsu: Add device properties for Nuvoton codec

This patch added default values for two SAR properies
introduced by updated nau8825 codec driver. Also updated
sar-threshold to improve button detection accuracy.

Bug=chrome-os-partner:49394
BRANCH=glados
TEST=Build for kunimitsu. Tested with 4-button headset

Change-Id: I3e222ff58c1483e261acf1cea297164966bf8689
Signed-off-by: Yong Zhi <yong.zhi@intel.com>
Signed-off-by: Sathyanarayana Nujella <sathyanarayana.nujella@intel.com>
Reviewed-on: https://chromium-review.googlesource.com/322241
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
1 file changed