Disable auto power saver mode before running BatteryConstraintTest.

Some devices may turn off Android when power save mode is enabled to
switch to an alternate power save mode. Disabling auto power save mode
prevents false positives

Change-Id: I05574ad299595d57d1a7619ddea0b7161675806f
Fixes: 111410062
Test: atest android.jobscheduler.cts.BatteryConstraintTest
2 files changed