ASoC: fsl: p1022_ds: remove useless assignment

cppcheck warning:

sound/soc/fsl/p1022_ds.c:344:6: style: Redundant initialization for
'ret'. The initialized value is overwritten before it is
read. [redundantInitialization]
 ret = fsl_asoc_get_dma_channel(np, "fsl,playback-dma", &mdata->dai[0],
     ^
sound/soc/fsl/p1022_ds.c:203:10: note: ret is initialized
 int ret = -ENODEV;
         ^
sound/soc/fsl/p1022_ds.c:344:6: note: ret is overwritten
 ret = fsl_asoc_get_dma_channel(np, "fsl,playback-dma", &mdata->dai[0],
     ^
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20210219232937.6440-10-pierre-louis.bossart@linux.intel.comSigned-off-by: Mark Brown <broonie@kernel.org>

sound/soc/fsl/p1022_ds.c

@@ -200,7 +200,7 @@ static int p1022_ds_probe(struct platform_device *pdev)
 	struct device_node *codec_np = NULL;
 	struct machine_data *mdata;
 	struct snd_soc_dai_link_component *comp;
-	int ret = -ENODEV;
+	int ret;
 	const char *sprop;
 	const u32 *iprop;