ASoC: atmel_ssc_dai: Fix DMA params for different SSC

follow-up patch from c706f2e5 ASoC: atmel_ssc_dai: distinguish the
different SSC

cpu_dai id is always 0, use platform_device id to distinguish DMA
parameters of SSCs
Signed-off-by: Peter Meerwald-Stadler <p.meerwald@bct-electronic.com>
Signed-off-by: Mark Brown <broonie@kernel.org>

sound/soc/atmel/atmel_ssc_dai.c

@@ -321,7 +321,7 @@ static int atmel_ssc_startup(struct snd_pcm_substream *substream,
 		return ret;
 	}
 
-	dma_params = &ssc_dma_params[dai->id][dir];
+	dma_params = &ssc_dma_params[pdev->id][dir];
 	dma_params->ssc = ssc_p->ssc;
 	dma_params->substream = substream;