Fix buffer index issue in battleship information state tensor at terminal nodes.
Fix buffer index issue in battleship information state tensor at terminal nodes.

PiperOrigin-RevId: 473056245
Change-Id: I6ec799ab3d39ae36840ed7a4bea5170ab1a43f34

deepmind/open_spiel,deepmind/open_spiel,deepmind/open_spiel,deepmind/open_spiel,deepmind/open_spiel,deepmind/open_spiel