ALSA: aw2: 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: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/aw2/aw2-alsa.c b/sound/pci/aw2/aw2-alsa.c
index 8356180..9a49e42 100644
--- a/sound/pci/aw2/aw2-alsa.c
+++ b/sound/pci/aw2/aw2-alsa.c
@@ -52,7 +52,7 @@
  * TYPEDEFS
  ********************************/
   /* hardware definition */
-static struct snd_pcm_hardware snd_aw2_playback_hw = {
+static const struct snd_pcm_hardware snd_aw2_playback_hw = {
 	.info = (SNDRV_PCM_INFO_MMAP |
 		 SNDRV_PCM_INFO_INTERLEAVED |
 		 SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID),
@@ -69,7 +69,7 @@
 	.periods_max = 1024,
 };
 
-static struct snd_pcm_hardware snd_aw2_capture_hw = {
+static const struct snd_pcm_hardware snd_aw2_capture_hw = {
 	.info = (SNDRV_PCM_INFO_MMAP |
 		 SNDRV_PCM_INFO_INTERLEAVED |
 		 SNDRV_PCM_INFO_BLOCK_TRANSFER | SNDRV_PCM_INFO_MMAP_VALID),