WIP: etnaviv: occlusion query fixes
Some oq fixes based on !1530 (merged) which depend on !2924 (merged)
After this series land I will rebase/rework !1530 (merged) to land the fixes needed for sw based queries.
Some oq fixes based on !1530 (merged) which depend on !2924 (merged)
After this series land I will rebase/rework !1530 (merged) to land the fixes needed for sw based queries.