ASoC: stm32: sai: Fix get reset controller

Use devm version of reset_control_get function
to manage driver removing properly.
Signed-off-by: NOlivier Moysan <olivier.moysan@st.com>
Signed-off-by: NMark Brown <broonie@kernel.org>

sound/soc/stm/stm32_sai.c

@@ -85,7 +85,7 @@ static int stm32_sai_probe(struct platform_device *pdev)
 	}
 
 	/* reset */
-	rst = reset_control_get_exclusive(&pdev->dev, NULL);
+	rst = devm_reset_control_get_exclusive(&pdev->dev, NULL);
 	if (!IS_ERR(rst)) {
 		reset_control_assert(rst);
 		udelay(2);