lavapipe/llvmpipe: regressions since descriptor rewrite
These used to pass with zink, but since 12a7fc51 they fail:
KHR-GL46.shader_image_load_store.basic-allTargets-atomicGS
KHR-GL46.shader_image_load_store.basic-allTargets-atomicTCS
These used to pass with zink, but since 12a7fc51 they fail:
KHR-GL46.shader_image_load_store.basic-allTargets-atomicGS
KHR-GL46.shader_image_load_store.basic-allTargets-atomicTCS