update docker file with dependency installation (vllm-project#45)

Dockerfile.xpu

@@ -10,6 +10,14 @@ RUN wget -O- https://apt.repos.intel.com/intel-gpg-keys/GPG-PUB-KEY-INTEL-SW-PRO
 RUN apt-get update  -y \
 && apt-get install -y curl libicu70 lsb-release git wget vim numactl python3 python3-pip
 
+RUN git clone https://github.com/intel/pti-gpu && \
+    cd pti-gpu/sdk && \
+    mkdir build && \
+    cd build && \
+    cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_TOOLCHAIN_FILE=../cmake/toolchains/icpx_toolchain.cmake -DBUILD_TESTING=OFF .. && \
+    make -j && \
+    cmake --install . --config Release --prefix "/usr/local"
+
 COPY ./ /workspace/vllm
 
 WORKDIR /workspace/vllm