A0VREF and A0VSS configuration in RH850 F1KM S1

I am using RH850 F1KM S1. A0VREF and A0VSS  is connected to pin 42 and 43. I am trying to configure it in smart configurator. It is giving warning as "There is no software initializing this pin". I am not finding any component in smart config to initialize. Please let me know, how to configure this?.