Add FrameworksVibratorServicesTests to android/os test mapping

Add file-pattern presubmit test mapping for changes in vibrator-related
sources from android.os.* and android.os.vibrator.*.

This ensures that any changes in these source folders will also trigger
FrameworksVibratorServicesTests, which relies on VibrationEffect and
other client classes.

Fix: 290760064
Test: atest --test-mapping \
       services/core/java/android/os:presubmit
Change-Id: Id677a39f9762ff050968be71217b31590c7a2d73