zink: lower LOD-invalid txf when imageRobustAccess2 is missing

zink: lower LOD-invalid txf when imageRobustAccess2 is missing

GL robust buffer access applies to texelFetch with out of bounds LODs.
imageRobustAccess2 guarantees this, but imageRobustAccess does not.
Therefore, the txf robustness lowering pass from earlier is used
to provide this guarantee and support ARB/KHR robust_buffer_access_behavior.

Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/20808>