iris: reorder arguments as expected by the function

CID: 1452262
Fixes: b4c54894 "iris: Handle vertex shader with window space position"
Signed-off-by: Tapani Pälli <tapani.palli@intel.com>
Reviewed-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Danylo Piliaiev <danylo.piliaiev@globallogic.com>
13 jobs for !1644 with cid_fix in 25 minutes and 26 seconds (queued for 3 seconds)
detached
Status Name Job ID Coverage
  Containers Build
passed debian #496874

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  Build+Test
passed meson-arm64 #496883

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passed meson-armhf #496882

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passed meson-clang #496876

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passed meson-clover #496880

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passed meson-i386 #496884

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passed meson-main #496879

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passed meson-swr-glvnd #496875

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passed meson-vulkan #496881

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passed scons-llvm #496886

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passed scons-nollvm #496885

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passed scons-swr #496877

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passed scons-win64 #496878

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