Fix /data dir creation, 'apmanager' service class. /data is not guaranteed to be mounted when 'boot' triggers. 'post-fs-data' guarantees that. Also, move the daemon to class 'late_start', since post-fs-data will not happen in time for class 'main'. Bug: 25373880 Change-Id: I524f0a3e20696f502e534669aebb4d388c6822ea