Recognize the AC97 interface to the onboard sound controller on the Nvidia

nForce chipset.  Playback at least seems to work fine with the ich driver
out of the box.

Sponsored by:	The Weather Channel
Help from:	cg

sys/dev/sound/pci/ich.c

@@ -606,6 +606,10 @@ ich_pci_probe(device_t dev)
 		device_set_desc(dev, "SiS 7012");
 		return 0;
 
+	case 0x01b110de:
+		device_set_desc(dev, "Nvidia nForce AC97 controller");
+		return 0;
+
 	default:
 		return ENXIO;
 	}