V4L/DVB (10403): saa7134-alsa: saa7130 doesn't support digital audio

According with saa7130 public datasheet, saa7130 doesn't support
digital audio. This is also confirmed by experimental tests. So, it
doesn't make sense to let saa7134-alsa register for those chipsets.
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/saa7134/saa7134-alsa.c

@@ -1089,6 +1089,10 @@ static int saa7134_alsa_init(void)
 
 	list_for_each(list,&saa7134_devlist) {
 		dev = list_entry(list, struct saa7134_dev, devlist);
+		if (dev->pci->device == PCI_DEVICE_ID_PHILIPS_SAA7130)
+			printk(KERN_INFO "%s/alsa: %s doesn't support digital audio\n",
+				dev->name, saa7134_boards[dev->board].name);
+		else
 			alsa_device_init(dev);
 	}