Add API coverage for android.compat

API list:
android.compat.Compatibility.BehaviorChangeDelegate.onChangeReported(long)
android.compat.Compatibility.clearBehaviorChangeDelegate()
android.compat.Compatibility.reportUnconditionalChange(long)

Bug: 181655007
Test: atest CtsLibcoreTestCases:libcore.android.compat.CompatibilityTest
Change-Id: Ic7a3f5a4c40fa59e7888e474de913834d636461b
1 file changed