Add CTS test for AssetManager double destroy

If an AssetManager is closed and then finalized before assets that
were opened with that AssetManager were finalized, nativeDestroy
will be ran twice.

Test that the fix the double destroy issue works as expected.

Bug: 144028297
Test atest android.security.cts.AssetManagerTest

Change-Id: Iecbb0cc60d1e2f93d7ec1fa263be2910de1a78a8