AP_HAL_Linux: AnalogIn_IIO: add scale for minlure

libraries/AP_HAL_Linux/AnalogIn_IIO.h

@@ -9,11 +9,14 @@
 
 #define IIO_ANALOG_IN_COUNT 8
 #define IIO_ANALOG_IN_DIR "/sys/bus/iio/devices/iio:device0/"
+
 #if CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_PXF
 // Note that echo BB-ADC cape should be loaded
 #define IIO_VOLTAGE_SCALING 0.00142602816
 #elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_BBBMINI
 #define IIO_VOLTAGE_SCALING 3.0*1.8/4095.0
+#elif CONFIG_HAL_BOARD_SUBTYPE == HAL_BOARD_SUBTYPE_LINUX_MINLURE
+#define IIO_VOLTAGE_SCALING 2.0 / 1000
 #else
 #define IIO_VOLTAGE_SCALING 1.0
 #endif