Apply VIBRATE_ON settings in vibrator service

Apply main switch toggle from "Vibration & haptics" settings screeen to
disable all vibrations except for accessibility usage and the ones with
bypass flag (e.g. broadcasted alers from CellBroadcastAlertAudio.

Fix: 30028435
Test: VibrationSettingsTest
Change-Id: Ia8a0e5e952ce2e1055b6c63fc5801546b635d39a