iio: light: iqs621-als: make use of regmap_clear_bits()

Instead of using regmap_update_bits() and passing val = 0, use
regmap_clear_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-v3-29-88d1338c4cca@baylibre.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/light/iqs621-als.c

@@ -86,8 +86,8 @@ static int iqs621_als_init(struct iqs621_als_private *iqs621_als)
 	if (iqs621_als->prox_en)
 		event_mask |= iqs62x->dev_desc->ir_mask;
 
-	return regmap_update_bits(iqs62x->regmap, IQS620_GLBL_EVENT_MASK,
-				  event_mask, 0);
+	return regmap_clear_bits(iqs62x->regmap, IQS620_GLBL_EVENT_MASK,
+				 event_mask);
 }
 
 static int iqs621_als_notifier(struct notifier_block *notifier,