WIP: lima: lima_draw: overcome the current maximum vertices limitation

The hardware can't handle more than 65535 vertices per operation. This
update configures the hardware accordingly.

Some code refactoring is still required.

Signed-off-by: Patrick Lerda <patrick9876@free.fr>
17 jobs for !768 with mr_verticeslimitation in 16 minutes and 55 seconds (queued for 3 seconds)
latest detached
Status Job ID Name Coverage
  Containers Build
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debian

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  Build+Test
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meson-arm64

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meson-armhf

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meson-clang

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meson-clover

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meson-i386

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meson-main

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meson-swr-glvnd

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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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scons-win64

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  Test
passed #511486
test-llvmpipe-gles2 1/4

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passed #511487
test-llvmpipe-gles2 2/4

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test-llvmpipe-gles2 3/4

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passed #511489
test-llvmpipe-gles2 4/4

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