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zink: fix texcoord replacement

Mike Blumenkrantz requested to merge zmike/mesa:zink-pointsprite into master

zink needs replacement based on:

  • draw mode being primitives
  • y inversion for vk coordinate system

gallium can't easily do the former right now, so this needs to get pulled back into the driver for accurate handling

fixes all previously working cases and also spec@!opengl 3.2@coord-replace-doesnt-eliminate-frag-tex-coords

depends on !9095 (merged)

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