ASoC: intel: atom: Revert PCM buffer address setup workaround again

We worked around the breakage of PCM buffer setup by the commit
65ca89c ("ASoC: intel: atom: Fix breakage for PCM buffer address
setup"), but this isn't necessary since the CONTINUOUS buffer type
also sets runtime->dma_addr since commit f84ba10 ("ALSA:
memalloc: Store snd_dma_buffer.addr for continuous pages, too").
Let's revert the change again.

Link: https://lore.kernel.org/r/[email protected]
Signed-off-by: Takashi Iwai <[email protected]>

Author: tiwai

sound/soc/intel/atom/sst-mfld-platform-pcm.c

@@ -127,7 +127,7 @@ static void sst_fill_alloc_params(struct snd_pcm_substream *substream,
 	snd_pcm_uframes_t period_size;
 	ssize_t periodbytes;
 	ssize_t buffer_bytes = snd_pcm_lib_buffer_bytes(substream);
-	u32 buffer_addr = virt_to_phys(substream->runtime->dma_area);
+	u32 buffer_addr = substream->runtime->dma_addr;
 
 	channels = substream->runtime->channels;
 	period_size = substream->runtime->period_size;