[CDM Perm Sync] Fix a NPE for Perm Sync toggle

Bug: 290063372

Test: manual test on the breaking build.
Change-Id: I1f0a5c3840a4c97962fa9986d8f67ab0f652015f

src/com/android/settings/bluetooth/BluetoothDetailsDataSyncController.java

@@ -65,6 +65,7 @@ public class BluetoothDetailsDataSyncController extends BluetoothDetailsControll
         mCompanionDeviceManager = context.getSystemService(CompanionDeviceManager.class);
 
         mCompanionDeviceManager.getAllAssociations().stream().filter(
+                a -> a.getDeviceMacAddress() != null).filter(
                 a -> Objects.equal(mCachedDevice.getAddress(),
                         a.getDeviceMacAddress().toString().toUpperCase())).max(
                 Comparator.comparingLong(AssociationInfo::getTimeApprovedMs)).ifPresent(