etnaviv: don't use TS with multi-layer resources

etnaviv: don't use TS with multi-layer resources

Clear and render operations can target each layer of a multi-layer resource
separately, which means we would need to track TS valid and clear color
states for each layer separately to make TS work correctly. As multi-layer
resources are very likely not primarily used for rendering, they are unlikely
to profit much from TS, so instead of adding all this state, don't use TS for
such resources at all.

Fixes piglit spec@glsl-1.20@execution@tex-miplevel-selection 3d

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/18045>