sound: use DEFINE_PCI_DEVICE_TABLE

Use DEFINE_PCI_DEVICE_TABLE() to make PCI device ids go to
.devinit.rodata section, so they can be discarded in some cases,
and make them const.

Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/via82xx_modem.c b/sound/pci/via82xx_modem.c
index 47eb615..f7e8bbbe 100644
--- a/sound/pci/via82xx_modem.c
+++ b/sound/pci/via82xx_modem.c
@@ -260,7 +260,7 @@
 	struct snd_info_entry *proc_entry;
 };
 
-static struct pci_device_id snd_via82xx_modem_ids[] = {
+static DEFINE_PCI_DEVICE_TABLE(snd_via82xx_modem_ids) = {
 	{ PCI_VDEVICE(VIA, 0x3068), TYPE_CARD_VIA82XX_MODEM, },
 	{ 0, }
 };