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/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 1f516e6..ac05bef 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -2664,7 +2664,7 @@
 }
 
 /* PCI IDs */
-static struct pci_device_id azx_ids[] = {
+static DEFINE_PCI_DEVICE_TABLE(azx_ids) = {
 	/* ICH 6..10 */
 	{ PCI_DEVICE(0x8086, 0x2668), .driver_data = AZX_DRIVER_ICH },
 	{ PCI_DEVICE(0x8086, 0x27d8), .driver_data = AZX_DRIVER_ICH },