backend-wayland: Destroy touch device before seat
weston_touch_destroy(), which is called from weston_seat_release(), asserts that all its touch devices have been destroyed. The Wayland backend currently destroys the touch devices ... immediately after calling weston_seat_release().
Invert the ordering so that touch devices are destroyed first and we don't trip over the assert.
Signed-off-by: Daniel Stone daniels@collabora.com