etnaviv: enable TS also on sampler resources
etnaviv: enable TS also on sampler resources

Fixes a performance issue with imported winsys buffers as those are
marked with binding sampler view.

This might require a TS flush on single pipe chips that directly
sample from the rendered buffer, but otherwise seems to work fine.

Signed-off-by: Lucas Stach <48c9e973d8f86eb0cdae200124c5925db7587c4e@pengutronix.de>
Reviewed-by: Wladimir J. van der Laan <bbc07dc96bb50bf6868a2ddfc4dae14fbed703d9@gmail.com>

metora/MesaGLSLCompiler,metora/MesaGLSLCompiler,metora/MesaGLSLCompiler