input: sensors: Optimize apds9930 proximity calibrate time

Optimize apds9930 proximity calibration delay time and ensure
that sensor enabled and can not be reentranted when calibration.

CRs-Fixed: 791042
Change-Id: I4c083745180bdbe0e50fc9485d8aab1c3cb5c7bf
Signed-off-by: Daqing Chen <chendaqing@codeaurora.org>