LM/llama.cpp for OpenVINO

https://github.com/ggml-org/llama.cpp/blob/master/docs/backend/OPENVINO.md

Build

sudo apt install ninja-build

# 2026-08-21
cmake -B build/openvino \
  -G Ninja \
  -DGGML_OPENVINO=ON \
  -DGGML_NATIVE=ON \
  -DCMAKE_BUILD_TYPE=Release \
  -DCMAKE_INSTALL_RPATH="\$ORIGIN/../lib" .

cmake --build build/openvino --parallel

# old
cmake -B build-openvino \
  -DGGML_OPENVINO=ON \
  -DGGML_OPENVINO_DEVICE=GPU \
  -DGGML_NATIVE=ON \
  -DCMAKE_BUILD_TYPE=Release \
  -DCMAKE_INSTALL_RPATH="\$ORIGIN/../lib" .

cmake --build build-openvino --parallel

cmake --install build-openvino --prefix ~/llama.cpp/openvino