zaurus: Add ID for C-750/C-760/C-860/SL-C3000 PDA in MDLM mode

In 16adf5d07987d93675945f3cecf0e33706566005 I removed an over-broad
alias that caused zaurus.ko to bind to unrelated devices.
I had a report that at least one valid case no longer auto-loads because of this.
This patch adds an ID for that case.

Reported-by: Raphael Wimmer <raphael.wimmer@ur.de>
Signed-off-by: Dave Jones <davej@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/usb/zaurus.c

@@ -315,6 +315,11 @@ static const struct usb_device_id	products [] = {
 	.idProduct              = 0x9031,	/* C-750 C-760 */
 	ZAURUS_MASTER_INTERFACE,
 	.driver_info = ZAURUS_PXA_INFO,
+}, {
+	/* C-750/C-760/C-860/SL-C3000 PDA in MDLM mode */
+	USB_DEVICE_AND_INTERFACE_INFO(0x04DD, 0x9031, USB_CLASS_COMM,
+			USB_CDC_SUBCLASS_MDLM, USB_CDC_PROTO_NONE),
+	.driver_info = (unsigned long) &bogus_mdlm_info,
 }, {
 	.match_flags    =   USB_DEVICE_ID_MATCH_INT_INFO
 		 | USB_DEVICE_ID_MATCH_DEVICE,