HID: uclogic: Add missing suffix for digitalizers

commit 0977fda0 upstream.

The Pen (0x02) application usage was changed to Digitalizer (0x01) in
commit f7d8e387

 ("HID: uclogic: Switch to Digitizer usage for
styluses"). However, a suffix was not selected for the new usage.

Handle the digitalizer application usage in uclogic_input_configured()
and add the required suffix.

Signed-off-by: José Expósito <jose.exposito89@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>