anv: new robustness failures on index buffers
dEQP-VK.robustness.index_access.draw_indexed_2,Fail
dEQP-VK.robustness.index_access.draw_indexed_indirect_2,Fail
dEQP-VK.robustness.index_access.draw_indexed_indirect_count_2,Fail
dEQP-VK.robustness.index_access.draw_multi_indexed_2,Fail