HID: uclogic: Parse the UGEE v2 frame type
The string descriptor returned by UGEE v2 devices contains a byte
indicating the device frame type.
The values discovered so far are:
- 0: Frame with buttons, present in the XP-PEN Deco L.
- 1: Frame with buttons and dial, present in the PARBLO A610 PRO.
- 2: Frame with buttons and a mouse, shaped as a dial + touchpad.
Present in the XP-PEN Deco Pro S.
Parse the frame type and add KUnit tests.
Tested-by: Jouke Witteveen <j.witteveen@gmail.com>
Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>