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/rme32.c b/sound/pci/rme32.c
index f977dba..d5e1c6e 100644
--- a/sound/pci/rme32.c
+++ b/sound/pci/rme32.c
@@ -226,7 +226,7 @@
 	struct snd_kcontrol *spdif_ctl;
 };
 
-static struct pci_device_id snd_rme32_ids[] = {
+static DEFINE_PCI_DEVICE_TABLE(snd_rme32_ids) = {
 	{PCI_VDEVICE(XILINX_RME, PCI_DEVICE_ID_RME_DIGI32), 0,},
 	{PCI_VDEVICE(XILINX_RME, PCI_DEVICE_ID_RME_DIGI32_8), 0,},
 	{PCI_VDEVICE(XILINX_RME, PCI_DEVICE_ID_RME_DIGI32_PRO), 0,},