FP5: Move to QTI health AIDL service

The health AIDL HAL service provides functionalities of charger,
therefore system charger at /system/bin/charger is deprecated.
On top of that, QTI health AIDL HAL service enables suspend by
default, the equivalent of setting ro.charger.enable_suspend
for legacy charger.

Change-Id: I59c23e7974cea1174b0161f31a535fa3afa1e5c9