sensor-mon: Add Threshold value for Threshold event

Add the threshold value for threshold event to let user knowing the
status of sensor through threshold event log.
Divide the ErrorName into ErrorStatus and ErrorName which ErrorName is
used for getting threshold property and ErrorStatus represents this
threshold event is cleared or triggered in the event log.

Change-Id: I1979544d89cd87a307c58909a566c05707a3c1f2
Signed-off-by: Delphine CC Chiu <Delphine_CC_Chiu@wiwynn.com>
2 files changed