[Role Logic Move] Make setNotificationListenerAccessGranted user-aware

This operation currently assumes that the calling user is the user for
which the operation should target.

Instead, pull the userId from NotificationManager's context, and pass
this to NotificationService.

Mark NotificationManager method as @UserHandleAware, which informs the
caller that the operation will instead target the user passed into the
context used to initialize NotificationManager.

This change is needed to support the Role Business Logic Move project, because the caller of this method will be moving from a per-user app into SystemServer.

Bug: 302563478
Test: atest CtsRoleTestCases NotificationListenerCheckTest NotificationManagerTest
Change-Id: Ic590a9ab40a87be4817cd32c13d7248fc15a154b