hwmon: (tps23861) correct shunt LSB values

Current shunt LSB values got reversed during in the
original driver commit.

So, correct the current shunt LSB values according to
the datasheet.

This caused reading slightly skewed current values.

Fixes: fff7b8a ("hwmon: add Texas Instruments TPS23861 driver")
Signed-off-by: Robert Marko <robert.marko@sartura.hr>
Link: https://lore.kernel.org/r/20210609220728.499879-3-robert.marko@sartura.hr
Signed-off-by: Guenter Roeck <linux@roeck-us.net>

drivers/hwmon/tps23861.c

@@ -105,8 +105,8 @@
 #define TEMPERATURE_LSB			652 /* 0.652 degrees Celsius */
 #define VOLTAGE_LSB			3662 /* 3.662 mV */
 #define SHUNT_RESISTOR_DEFAULT		255000 /* 255 mOhm */
-#define CURRENT_LSB_255			62260 /* 62.260 uA */
-#define CURRENT_LSB_250			61039 /* 61.039 uA */
+#define CURRENT_LSB_250			62260 /* 62.260 uA */
+#define CURRENT_LSB_255			61039 /* 61.039 uA */
 #define RESISTANCE_LSB			110966 /* 11.0966 Ohm*/
 #define RESISTANCE_LSB_LOW		157216 /* 15.7216 Ohm*/