AP_BoardConfig: enable voltage monitoring on aerofc

libraries/AP_BoardConfig/px4_drivers.cpp

@@ -403,7 +403,6 @@ void AP_BoardConfig::px4_setup_px4io(void)
  */
 void AP_BoardConfig::px4_setup_peripherals(void)
 {
-#ifndef CONFIG_ARCH_BOARD_AEROFC_V1
     // always start adc
     if (px4_start_driver(adc_main, "adc", "start")) {
         hal.analogin->init();
@@ -411,7 +410,6 @@ void AP_BoardConfig::px4_setup_peripherals(void)
     } else {
         px4_sensor_error("no ADC found");
     }
-#endif
 
 #if !defined(CONFIG_ARCH_BOARD_PX4FMU_V4) && \
     !defined(CONFIG_ARCH_BOARD_AEROFC_V1)