Fix for "nomatch" event for ums and ukbd drivers when uhid is loaded.

MFC after:	3 days

sys/dev/usb/input/uhid.c

@@ -634,6 +634,18 @@ uhid_probe(device_t dev)
 	if (usb_test_quirk(uaa, UQ_HID_IGNORE))
 		return (ENXIO);
 
+	/*
+	 * Don't attach to mouse and keyboard devices, hence then no
+	 * "nomatch" event is generated and then ums and ukbd won't
+	 * attach properly when loaded.
+	 */
+	if ((uaa->info.bInterfaceClass == UICLASS_HID) &&
+	    (uaa->info.bInterfaceSubClass == UISUBCLASS_BOOT) &&
+	    ((uaa->info.bInterfaceProtocol == UIPROTO_BOOT_KEYBOARD) ||
+	     (uaa->info.bInterfaceProtocol == UIPROTO_MOUSE))) {
+		return (ENXIO);
+	}
+
 	return (BUS_PROBE_GENERIC);
 }