lima: disable GLX/EGL_EXT_buffer_age extension

Mali Utgard GPU is tile buffer GPU, so has to reload
render target if GLX/EGL_EXT_buffer_age extension is
enabled which is much expensive than redraw.

EGL_KHR_partial_update is more suitable for Mali
Utgard GPU.

Signed-off-by: Qiang Yu <yuq825@gmail.com>
15 jobs for !658 with topic/buffer-age in 14 minutes and 52 seconds (queued for 3 seconds)
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passed #237581
ubuntu

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autotools

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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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meson-gallium-radeonsi

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meson-gallium-st-other

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meson-gallium-swr

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meson-glvnd

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meson-loader-classic-dri

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meson-vulkan

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scons-llvm

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scons-nollvm

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scons-swr

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