ALSA: atiixp: constify atiixp_dma_ops structures

The atiixp_dma_ops structures are never modified, so declare them as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/atiixp_modem.c b/sound/pci/atiixp_modem.c
index 27ed678..c534552 100644
--- a/sound/pci/atiixp_modem.c
+++ b/sound/pci/atiixp_modem.c
@@ -970,7 +970,7 @@
 	.pointer =	snd_atiixp_pcm_pointer,
 };
 
-static struct atiixp_dma_ops snd_atiixp_playback_dma_ops = {
+static const struct atiixp_dma_ops snd_atiixp_playback_dma_ops = {
 	.type = ATI_DMA_PLAYBACK,
 	.llp_offset = ATI_REG_MODEM_OUT_DMA1_LINKPTR,
 	.dt_cur = ATI_REG_MODEM_OUT_DMA1_DT_CUR,
@@ -979,7 +979,7 @@
 	.flush_dma = atiixp_out_flush_dma,
 };
 	
-static struct atiixp_dma_ops snd_atiixp_capture_dma_ops = {
+static const struct atiixp_dma_ops snd_atiixp_capture_dma_ops = {
 	.type = ATI_DMA_CAPTURE,
 	.llp_offset = ATI_REG_MODEM_IN_DMA_LINKPTR,
 	.dt_cur = ATI_REG_MODEM_IN_DMA_DT_CUR,