ASoC: mmp-sspa: drop unneeded snd_soc_dai_set_drvdata

snd_soc_dai_set_drvdata is not needed when the set data comes from
snd_soc_dai_get_drvdata or dev_get_drvdata.  The problem was fixed
usingthe following semantic patch: (http://coccinelle.lip6.fr/)

// <smpl>
@@
expression x,y,e;
@@
	x = dev_get_drvdata(y->dev)
	... when != x = e
-	snd_soc_dai_set_drvdata(y,x);

@@
expression x,y,e;
@@
	x = snd_soc_dai_get_drvdata(y)
	... when != x = e
-	snd_soc_dai_set_drvdata(y,x);
// </smpl>

Signed-off-by: Julia Lawall <Julia.Lawall@inria.fr>
Link: https://lore.kernel.org/r/20210213101907.1318496-2-Julia.Lawall@inria.fr
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/pxa/mmp-sspa.c

@@ -330,7 +330,6 @@ static int mmp_sspa_probe(struct snd_soc_dai *dai)
 				&sspa->playback_dma_data,
 				&sspa->capture_dma_data);
 
-	snd_soc_dai_set_drvdata(dai, sspa);
 	return 0;
 }