panvk: Properly propagate helper invocations requirement and expose 3 trivial google extensions
Fix "dEQP-VK.graphicsfuzz.cov-nested-loops-sample-opposite-corners" for real this time and enable some trivial extensions.
/cc @bbrezillon
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Fix "dEQP-VK.graphicsfuzz.cov-nested-loops-sample-opposite-corners" for real this time and enable some trivial extensions.
/cc @bbrezillon