Prevent this test from running on mumd devices

Will make this test run on all devices once UI Automator's UiDevice#isScreenOn starts supporting multi-user / multi-display.

This CL also sets this test to run on regular JUnit runner since AndroidJUnitRunner is not really needed.

Bug: 282069758
Test: atest CtsCarTestCases:android.car.cts.CarInputManagerSystemTest
Change-Id: I6bbf9cbde50fea5c8b27d854592a1ae1c5263112
1 file changed