temperature_mcu: Improve handling when in debug output mode

Call mcu_adc.setup_minmax() even in debug output mode so that the
debugging output contains a more accurate configuration.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>

klippy/extras/temperature_mcu.py

@@ -35,6 +35,8 @@ class PrinterTemperatureMCU:
         query_adc.register_adc(config.get_name(), self.mcu_adc)
         # Register callbacks
         if self.printer.get_start_args().get('debugoutput') is not None:
+            self.mcu_adc.setup_minmax(SAMPLE_TIME, SAMPLE_COUNT,
+                                      range_check_count=RANGE_CHECK_COUNT)
             return
         self.printer.register_event_handler("klippy:mcu_identify",
                                             self._mcu_identify)