ASoC: meson: axg-tdm-formatter: free reset on device removal

Use the devm variant to get the formatter reset so it is properly freed
on device removal

Fixes: 751bd5db ("ASoC: meson: axg-tdm-formatter: add reset")
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Link: https://lore.kernel.org/r/20190820123413.22249-1-jbrunet@baylibre.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/meson/axg-tdm-formatter.c

@@ -327,7 +327,7 @@ int axg_tdm_formatter_probe(struct platform_device *pdev)
 	}
 
 	/* Formatter dedicated reset line */
-	formatter->reset = reset_control_get_optional_exclusive(dev, NULL);
+	formatter->reset = devm_reset_control_get_optional_exclusive(dev, NULL);
 	if (IS_ERR(formatter->reset)) {
 		ret = PTR_ERR(formatter->reset);
 		if (ret != -EPROBE_DEFER)