Add tests for updating Settings Page for Avalanche Suppression

Add unit tests for the updating of the Settings
Page for the Avalanche
visual and auditory Suppression.

Bug: 330606963
Test: PoliteNotificationGlobalPreferenceControllerTest, PoliteNotifWorkProfileToggleControllerTest
Flag: com.android.server.notification.polite_notifications
Change-Id: I8a84f688eb0b3981fbb0fdb699755b4601583702