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/als4000.c b/sound/pci/als4000.c
index 3dbacde..d75cf7b 100644
--- a/sound/pci/als4000.c
+++ b/sound/pci/als4000.c
@@ -117,7 +117,7 @@
 #endif
 };
 
-static struct pci_device_id snd_als4000_ids[] = {
+static DEFINE_PCI_DEVICE_TABLE(snd_als4000_ids) = {
 	{ 0x4005, 0x4000, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0, },   /* ALS4000 */
 	{ 0, }
 };