Uses RequiredFeatureRule to skip tests that don't support backup.

To test it, run, remove the feature from
/vendor/etc/permissions/car_core_hardware.xml and restart the system.

Test: atest CtsBackupHostTestCases # with and without the feature

Bug: 166339795
Bug: 169341308

Change-Id: If6c04ae138880ad33274260b1d7dcf5c7fc5bc48
12 files changed