[Mesa19.2.1] dEQP-GLES31.functional.ssbo.layout.random.all_per_block_buffers#18 test fail

[jennycao]

dEQP-GLES31.functional.ssbo.layout.random.all_per_block_buffers#18 test crash (x86 and x86_64 platform, also included in 9.0-r8)

[tpalli]

https://bugs.freedesktop.org/show_bug.cgi?id=109532

[strassek]

We were already carrying a pair of patches for this failure, those patches are still under review upstream and have been rebased/modified: https://gitlab.freedesktop.org/mesa/mesa/merge_requests/332

I have updated master with the most recent version of Andrii's series, please retest.