staging: iio: tsl2x7x: correct 'Avoid CamelCase' warning from checkpatch

The statP and calP variables triggered an 'Avoid CamelCase' warning
from checkpatch.pl. This patch renames these variables to stat and cal
to fix this warning.
Signed-off-by: Brian Masney <masneyb@onstation.org>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/staging/iio/light/tsl2x7x.c

@@ -773,7 +773,7 @@ static int tsl2x7x_invoke_change(struct iio_dev *indio_dev)
 }
 
 static void tsl2x7x_prox_calculate(int *data, int length,
-				   struct tsl2x7x_prox_stat *statP)
+				   struct tsl2x7x_prox_stat *stat)
 {
 	int i;
 	int sample_sum;
@@ -783,21 +783,21 @@ static void tsl2x7x_prox_calculate(int *data, int length,
 		length = 1;
 
 	sample_sum = 0;
-	statP->min = INT_MAX;
-	statP->max = INT_MIN;
+	stat->min = INT_MAX;
+	stat->max = INT_MIN;
 	for (i = 0; i < length; i++) {
 		sample_sum += data[i];
-		statP->min = min(statP->min, data[i]);
-		statP->max = max(statP->max, data[i]);
+		stat->min = min(stat->min, data[i]);
+		stat->max = max(stat->max, data[i]);
 	}
 
-	statP->mean = sample_sum / length;
+	stat->mean = sample_sum / length;
 	sample_sum = 0;
 	for (i = 0; i < length; i++) {
-		tmp = data[i] - statP->mean;
+		tmp = data[i] - stat->mean;
 		sample_sum += tmp * tmp;
 	}
-	statP->stddev = int_sqrt((long)sample_sum / length);
+	stat->stddev = int_sqrt((long)sample_sum / length);
 }
 
 /**
@@ -812,7 +812,7 @@ static void tsl2x7x_prox_cal(struct iio_dev *indio_dev)
 	int prox_history[MAX_SAMPLES_CAL + 1];
 	int i;
 	struct tsl2x7x_prox_stat prox_stat_data[2];
-	struct tsl2x7x_prox_stat *calP;
+	struct tsl2x7x_prox_stat *cal;
 	struct tsl2X7X_chip *chip = iio_priv(indio_dev);
 	u8 tmp_irq_settings;
 	u8 current_state = chip->tsl2x7x_chip_status;
@@ -844,13 +844,13 @@ static void tsl2x7x_prox_cal(struct iio_dev *indio_dev)
 	}
 
 	tsl2x7x_chip_off(indio_dev);
-	calP = &prox_stat_data[PROX_STAT_CAL];
+	cal = &prox_stat_data[PROX_STAT_CAL];
 	tsl2x7x_prox_calculate(prox_history,
-			       chip->settings.prox_max_samples_cal, calP);
-	chip->settings.prox_thres_high = (calP->max << 1) - calP->mean;
+			       chip->settings.prox_max_samples_cal, cal);
+	chip->settings.prox_thres_high = (cal->max << 1) - cal->mean;
 
 	dev_info(&chip->client->dev, " cal min=%d mean=%d max=%d\n",
-		 calP->min, calP->mean, calP->max);
+		 cal->min, cal->mean, cal->max);
 	dev_info(&chip->client->dev,
 		 "%s proximity threshold set to %d\n",
 		 chip->client->name, chip->settings.prox_thres_high);