HID: waltop: add Media Tablet 14.1 inch support

Add support for Waltop Media Tablet 14.1 inch by fixing report descriptor.

This tablet is also sold as Genius G-Pen M712 (older version) and M712X
(newer version). Both are supported.

Trust Wide Screen Design Tablet (TB-7300, item no 15358) seems to be the
older version of this tablet (similar to Genius G-Pen M712), and could be
supported as well.

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 5be6293..c6b2f7b 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -522,6 +522,7 @@
 #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_DEVICE_ID_WALTOP_MEDIA_TABLET_14_1_INCH	0x0500
 
 #define USB_VENDOR_ID_WISEGROUP		0x0925
 #define USB_DEVICE_ID_SMARTJOY_PLUS	0x0005