ASoC: ti: j721e-evm: Fix missing unlock on error in j721e_audio_hw_params()

Add the missing unlock before return from function j721e_audio_hw_params()
in the error handling case.

Fixes: 6748d055 ("ASoC: ti: Add custom machine driver for j721e EVM (CPB and IVI)")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Link: https://lore.kernel.org/r/20200703030910.75047-1-weiyongjun1@huawei.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/ti/j721e-evm.c

@@ -330,7 +330,7 @@ static int j721e_audio_hw_params(struct snd_pcm_substream *substream,
 		ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x3, 0x3, 2,
 					       slot_width);
 		if (ret && ret != -ENOTSUPP)
-			return ret;
+			goto out;
 	}
 
 	ret = j721e_configure_refclk(priv, domain_id, params_rate(params));