Refactor the test to align with SystemUI and fix failures

For cars new test case is: AAAPlusPlusVerifyCarSysuiRequiredTestPropertiesTest

It extends AAAPlusPlusVerifySysuiRequiredTestPropertiesTest from the platform system ui to avoid the test logic is not outdated & false fails on their screenshots.

Bug: 268488144
Test: atest :carsysui-presubmit --include-subdir

Change-Id: I07478186440af86d8b1c7d24891ceeb18b719a69
2 files changed