iio: accel: kxsd9: 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>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Link: https://patch.msgid.link/20240617-review-v3-2-88d1338c4cca@baylibre.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/iio/accel/kxsd9.c

@@ -370,10 +370,7 @@ static int kxsd9_power_down(struct kxsd9_state *st)
 	 * make sure we conserve power even if there are others users on the
 	 * regulators.
 	 */
-	ret = regmap_update_bits(st->map,
-				 KXSD9_REG_CTRL_B,
-				 KXSD9_CTRL_B_ENABLE,
-				 0);
+	ret = regmap_clear_bits(st->map, KXSD9_REG_CTRL_B, KXSD9_CTRL_B_ENABLE);
 	if (ret)
 		return ret;