update_engine.rc

# LINT.IfChange
service update_engine /system/bin/update_engine --logtostderr --logtofile --foreground
    class late_start
    user root
    group root system wakelock inet cache media_rw
    disabled

on property:ro.boot.slot_suffix=*
    enable update_engine
# LINT.ThenChange(update_engine_nostats.rc)