iio: adc: rn5t618-adc: make use of regmap_set_bits()

Instead of using regmap_update_bits() and passing the mask twice, use
regmap_set_bits().
Suggested-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Signed-off-by: Trevor Gamblin <tgamblin@baylibre.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://patch.msgid.link/20240617-review-v3-16-88d1338c4cca@baylibre.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/adc/rn5t618-adc.c

@@ -137,9 +137,8 @@ static int rn5t618_adc_read(struct iio_dev *iio_dev,
 
 	init_completion(&adc->conv_completion);
 	/* single conversion */
-	ret = regmap_update_bits(adc->rn5t618->regmap, RN5T618_ADCCNT3,
-				 RN5T618_ADCCNT3_GODONE,
-				 RN5T618_ADCCNT3_GODONE);
+	ret = regmap_set_bits(adc->rn5t618->regmap, RN5T618_ADCCNT3,
+			      RN5T618_ADCCNT3_GODONE);
 	if (ret < 0)
 		return ret;