Deny SCHEDULE_EXACT_ALARM by default to newer apps

Apps targeting T will not get SCHEDULE_EXACT_ALARM permission by
default, except in a few privileged special cases.

Test: atest FrameworksMockingServicesTests:AlarmManagerServiceTest
atest CtsAlarmManagerTestCases:ExactAlarmsTest

Bug: 226439802
Change-Id: Ie81a9c3bd8b863c3fd64aaf413209ff8862de74b
5 files changed