etnaviv: force vertex buffers through the MMU

This fixes a vertex data corruption issue if some of the vertex streams
go through the MMU and some don't.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Tested-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Christian Gmeiner <christian.gmeiner@gmail.com>
(cherry picked from commit e158b7497103f145a9236a70183e07c37a9e13f7)
Nominated-by: Christian Gmeiner <christian.gmeiner@gmail.com>
1 file changed