BatteryService: Mod: Check against all conditions

* Change logical operators from `||` to ~&&` to achieve this.
* Additionally, change to using supplementalOrEmergencyModOnline()
  to avoid duplicating logic.

* This fixes battery power saver mode on some devices that were
  effected by the initial Battery mod commit.

Change-Id: I9b2bfa26ab0c204f7a42ba6010f1f569fa7b0fd8