etnaviv: force vertex buffers through the MMU
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 <48c9e973d8f86eb0cdae200124c5925db7587c4e@pengutronix.de>
Tested-by: Philipp Zabel <db7328bbf81a38b011e8d0f5302fd54c788d0608@pengutronix.de>
Acked-by: Christian Gmeiner <7d98dcb0e8545320ffc03d45630c91ed21ec4c41@gmail.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler