etnaviv: fix leak of the screen hash table

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Tested-by: Philipp Zabel p.zabel@pengutronix.de
Reviewed-by: Simon Ser <contact@emersion.fr>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12904>
1 file changed