anv: Only add END_OF_PIPE_SYNC if we actually have AUX_INVAL

Merged Faith Ekstrand requested to merge gfxstrand/mesa:review/anv-fix-aux-inval into master

Setting END_OF_PIPE_SYNC bit on every draw call probably isn't doing good things for our Gen12 performance.... 😛

Ignore the first two patches. This is on top of !4218 (merged) which is already assigned to @marge-bot

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