mesa: Add missing display list support for GL_FOG_COORDINATE_SOURCE

Fixes: fe5d67d9 ("Implement EXT_fog_coord and EXT_secondary_color.")
Reviewed-by: Mathias Fröhlich <Mathias.Froehlich@web.de>
Cc: Brian Paul <brianp@vmware.com>
14 jobs for !746 with review/GL_FOG_COORDINATE_SOURCE-in-display-list in 9 minutes and 17 seconds (queued for 1 minute and 27 seconds)
latest detached
Status Job ID Name Coverage
  Containers Build
passed #270706
debian

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  Build+Test
passed #270708
meson-clang

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meson-gallium-clover-llvm

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meson-gallium-clover-llvm39

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meson-gallium-drivers-other

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passed #270712
meson-gallium-radeonsi

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passed #270716
meson-gallium-st-other

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passed #270707
meson-gallium-swr

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meson-glvnd

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meson-loader-classic-dri

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passed #270709
meson-vulkan

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passed #270718
scons-llvm

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passed #270717
scons-nollvm

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passed #270719
scons-swr

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