This patch focused on fixing compile errors and some runtime errors.
Test: We can't test it now. But we will have an integration test later.
Bug: 110259478
Change-Id: I16c471ddcd0fa1460c665b7f74d86fcace5ee67b
Bug: 110589286
Test: fingerprint enrolling still works
Test: enrollment flow with and without a pin set up still works properly
Test: enrollment continues when configuration changes, stops otherwise
Change-Id: I39f76c7f1a16e9533cef573f87cf4b81cb20cb18