[wacom-movink-13.tablet]Add EvdevCodes

This changes adds the corresponding EvdevCodes to Buttons.
The original discussion is at the link of #879.

Signed-off-by: Tatsunosuke Tobita <tatsunosuke.tobita@wacom.com>
Link: #879

Author: flying-elephant

data/wacom-movink-13.tablet

@@ -50,3 +50,4 @@ Touch=true
 # but let's assign it to Left here, that's good enough.
 Left=A;C
 Right=B
+EvdevCodes=BTN_0;BTN_1;BTN_2