Proximity Sensor: Change the integration circle

Proximity Sensor: Change the integration circle

BZ: 33317

Change the integration circle to one to reduce the proximity detect
delay.

Change-Id: I97930f96fdafa2ce35a973992c9710f6f25b86be
Signed-off-by: Leo Yan <leo.yan@intel.com>
Reviewed-on: http://android.intel.com:8080/47711
Reviewed-by: Wang, Zhifeng <zhifeng.wang@intel.com>
Reviewed-by: Chen, Jie D <jie.d.chen@intel.com>
Reviewed-by: Liu, Hong <hong.liu@intel.com>
Reviewed-by: Du, Alek <alek.du@intel.com>
Tested-by: Tang, HaifengX <haifengx.tang@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>