Now setting a default passkey when starting the BLE service/server

app/nano_shell_command.c

@@ -667,6 +667,7 @@ int _bluetooth(const shell_cmd_t *pcmd, int argc, char *const argv[])
         {
           gadget_bridge_parser_register_event_callback(&(parser_event_cb));
           ble_service_register_nus_data_rx_cb(&(nus_data_rx_cb));
+          ble_service_set_pairing_passkey(123456);
         }   
     }
     else if(strcmp(argv[1], "disable") == 0)