staging: bcm2835-audio: make snd_pcm_hardware const

Make these const as they are only used during a copy operation.
Done using Coccinelle.
Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/vc04_services/bcm2835-audio/bcm2835-pcm.c

@@ -20,7 +20,7 @@
 #include "bcm2835.h"
 
 /* hardware definition */
-static struct snd_pcm_hardware snd_bcm2835_playback_hw = {
+static const struct snd_pcm_hardware snd_bcm2835_playback_hw = {
 	.info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
 	SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID),
 	.formats = SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE,
@@ -36,7 +36,7 @@ static struct snd_pcm_hardware snd_bcm2835_playback_hw = {
 	.periods_max = 128,
 };
 
-static struct snd_pcm_hardware snd_bcm2835_playback_spdif_hw = {
+static const struct snd_pcm_hardware snd_bcm2835_playback_spdif_hw = {
 	.info = (SNDRV_PCM_INFO_INTERLEAVED | SNDRV_PCM_INFO_BLOCK_TRANSFER |
 	SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID),
 	.formats = SNDRV_PCM_FMTBIT_S16_LE,