[PATCH] USB: Add an entry in cdc-acm.c for devices with ACM class (some Motorola phones)

Normally the CDC ACM devices have an subclass of 0, and the ACM subclass is
only applied to their first interface. But some have the subclass set on
the device itself, namely Motorola mobile phones. This patch takes those
devices into account.

drivers/usb/class/cdc-acm.c

@@ -697,6 +697,7 @@ static void acm_disconnect(struct usb_interface *intf)
 
 static struct usb_device_id acm_ids[] = {
 	{ USB_DEVICE_INFO(USB_CLASS_COMM, 0, 0) },
+	{ USB_DEVICE_INFO(USB_CLASS_COMM, 2, 0) },
 	{ }
 };