Test for throttling allow-while-idle alarms in EBS

Testing that allow_while_idle alarms are not blocked, but rate limited
at a maximum of one every ALLOW_WHILE_IDLE_LONG_TIME

Test: atest android.alarmmanager.cts.BatterySaverTests

Bug: 72124522
Change-Id: I5b86d56b1e24631cd82a3bfb93598d401716d70a
4 files changed