ASoC: soc-io: Fix snd_soc_component_update_bits_legacy

After the codec to component conversion codecs with custom read/write
function will no longer able to use update_bits as their io callbacks are
registered at component->driver level and not in component level.

To not complicate the code further, lets just use the
snd_soc_component_read/snd_soc_component_write function and let them sort
out the correct io function to call.

Fixes: d0ff8ba5 ("ASoC: add Component level .read/.write")
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/soc-io.c

@@ -88,19 +88,16 @@ static int snd_soc_component_update_bits_legacy(
 	unsigned int old, new;
 	int ret;
 
-	if (!component->read || !component->write)
-		return -EIO;
-
 	mutex_lock(&component->io_mutex);
 
-	ret = component->read(component, reg, &old);
+	ret = snd_soc_component_read(component, reg, &old);
 	if (ret < 0)
 		goto out_unlock;
 
 	new = (old & ~mask) | (val & mask);
 	*change = old != new;
 	if (*change)
-		ret = component->write(component, reg, new);
+		ret = snd_soc_component_write(component, reg, new);
 out_unlock:
 	mutex_unlock(&component->io_mutex);