arm:dts:p1761-A03: Add proximity sensor threshold

arm:dts:p1761-A03: Add proximity sensor threshold

Move hand a distance of 1 cm from the sensor, sensor value is around 125-150.
Move hand far from the sensor, sensor value is around 100-119.
Hence, set threshold to 125 here.

bug 1496946

Change-Id: I8daee325b82bccb0748e006560a8e6a1d78e30ad
Signed-off-by: wahsu <wahsu@nvidia.com>
Reviewed-on: http://git-master/r/395111
Reviewed-by: Robert Shih <rshih@nvidia.com>
Reviewed-by: Sri Krishna Chowdary <schowdary@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Sachin Nikam <snikam@nvidia.com>