thermal: qcom: qcom-spmi-adc-tm5: convert to IIO fwnode API

Make usage of the new firmware agnostic API
'devm_of_iio_channel_get_by_name()' to get the IIO channel.
Signed-off-by: Nuno Sá <nuno.sa@analog.com>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Link: https://lore.kernel.org/r/20220715122903.332535-7-nuno.sa@analog.comSigned-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

drivers/thermal/qcom/qcom-spmi-adc-tm5.c

@@ -830,7 +830,8 @@ static int adc_tm5_get_dt_channel_data(struct adc_tm5_chip *adc_tm,
 	}
 	channel->adc_channel = args.args[0];
 
-	channel->iio = devm_of_iio_channel_get_by_name(adc_tm->dev, node, NULL);
+	channel->iio = devm_fwnode_iio_channel_get_by_name(adc_tm->dev,
+							   of_fwnode_handle(node), NULL);
 	if (IS_ERR(channel->iio)) {
 		ret = PTR_ERR(channel->iio);
 		if (ret != -EPROBE_DEFER)