Pass AttributionSource to bluetooth scanning methods.

This passes the AttributionSource to AdapterService and GattService
methods that perform scanning or discovery.

Bug: 183203469
Test: atest GattServiceTest
Test: atest AdapterServiceTest
Test: atest CtsPermissionTestCases:android.permission.cts.NearbyDevicesPermissionTest

Change-Id: Id68558624fbae69eac3a8613b9536eb6e0df75bf