charger: Do not suspend when disconnecting from charger

The device should be power off when disconnecting from charger.
If the device enter to suspend, the device couldn't handle the power off
process. So the device shouldn't suspend to handle the power off at that time

https://github.com/LiquidSmooth/android_system_core/commit/8018725e530f1040e81d2975a728e14476407493

Change-Id: Icbb3503acdf24455f4b0640c6e74a69c8d778fc5