ASoC: sh: Avoid passing NULL to memory allocators

We should pass a proper	non-NULL device	object to memory allocators
although it was accepted in the past.  The card->dev points to the
most appropriate device object in such a case, so let's put it.
Acked-by: Christoph Hellwig <hch@lst.de>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

sound/soc/sh/siu_pcm.c

@@ -542,7 +542,7 @@ static int siu_pcm_new(struct snd_soc_pcm_runtime *rtd)
 			return ret;
 
 		ret = snd_pcm_lib_preallocate_pages_for_all(pcm,
-				SNDRV_DMA_TYPE_DEV, NULL,
+				SNDRV_DMA_TYPE_DEV, card->dev,
 				SIU_BUFFER_BYTES_MAX, SIU_BUFFER_BYTES_MAX);
 		if (ret < 0) {
 			dev_err(card->dev,