/*                                                                                                                                               
         * Networks in EF_SPDI or EF_OPL are equivalent to a home network. Some                                                                          
         * operators (MVNOs usually) store in one of these files their home                                                                              
         * networks, so we remove the roaming flag if the network we are                                                                                 
         * registered in is present in the files. Although this is not strictly                                                                          
         * conformant with the standard, seems to be common practice among                                                                               
         * operators: in the case of EF_SPDI it seems obvious that when the SIM                                                                          
         * owner wants to display the SPN (its name) is because it is not                                                                                
         * roaming. In the case of EF_OPL, no operator would care about changing                                                                         
         * the displayed name for a network which is not among its home networks                                                                         
         * (EF_OPL stores the index for the EF_PNN entry for a PLMN).                                                                                    
         */