HID: add support for two Waltop tablets

Add support for Waltop Slim Tablet 5.8 inch and Media Tablet 10.6 inch.

These (and other Waltop) tablets are usually sold by different companies
(such as Genius and Trust) and with different names, but with the same USB
vendor/product IDs.

Slim Tablet 5.8 inch is known to also be sold as Genius G-Pen F350 and Trust
Widescreen Mini Tablet (item no 16485).

Media Tablet 10.6 inch is known to also be sold as Genius G-Pen M609 and
M609X. Of these only the latter is known to be supported.

Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index b887e73..5be6293 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -519,6 +519,10 @@
 #define USB_VENDOR_ID_WACOM		0x056a
 #define USB_DEVICE_ID_WACOM_GRAPHIRE_BLUETOOTH	0x81
 
+#define USB_VENDOR_ID_WALTOP				0x172f
+#define USB_DEVICE_ID_WALTOP_SLIM_TABLET_5_8_INCH	0x0032
+#define USB_DEVICE_ID_WALTOP_MEDIA_TABLET_10_6_INCH	0x0501
+
 #define USB_VENDOR_ID_WISEGROUP		0x0925
 #define USB_DEVICE_ID_SMARTJOY_PLUS	0x0005
 #define USB_DEVICE_ID_1_PHIDGETSERVO_20	0x8101