Enforce calling uid when using attribution source.

This adds calls to AttributionSource.enforceCallingUid, to check
that the attrbution source matches the caller, before
using the attribution source in permission checks in BT code.

Bug: 188391719
Test: atest CtsPermissionTestCases:android.permission.cts.NearbyDevicesPermissionTest
Test: build & flash, check bluetooth works
Change-Id: I06a9d21da485531a01a96b0359cc8ad84d78956f