GTK already produces corresponding GDK_BUTTON_PRESS events
alongside 2BUTTON and 3BUTTON_PRESS events. The 2BUTTON and
3BUTTON_PRESS events were incorrectly being interpreted and
passed to guests as button release events.

Resolves: https://gitlab.com/qemu-project/qemu/-/issues/558


Signed-off-by: K. Lange <klange@toaruos.org>
Message-Id: <20220305104521.3583703-1-klange@toaruos.org>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>