fix add patch in dockerfile-npu

Author: qyh111

docker/Dockerfile-NPU

@@ -1,5 +1,5 @@
 # Set to other image if needed
-FROM quay.io/ascend/vllm-ascend:v0.9.2rc1
+FROM quay.io/ascend/vllm-ascend:v0.9.2rc1-openeuler
 
 ARG PIP_INDEX_URL="https://mirrors.tuna.tsinghua.edu.cn/pypi/web/simple"
 
@@ -15,11 +15,11 @@ RUN export PLATFORM="ascend" && \
     pip install -v -e /workspace/unified-cache-management --no-build-isolation
 
 # Apply patch for vLLM
-RUN cd $(pip show vllm | grep Location | awk '{print $2}') \
+RUN cd /vllm-workspace/vllm \
     && git apply /workspace/unified-cache-management/ucm/integration/vllm/patch/0.9.2/vllm-adapt.patch
 
 # Apply patch for vLLM-ascend
-RUN cd $(pip show vllm-ascend | grep Location | awk '{print $2}') \
+RUN cd /vllm-workspace/vllm-ascend \
     && git apply /workspace/unified-cache-management/ucm/integration/vllm/patch/0.9.2/vllm-ascend-adapt.patch
 
 CMD ["/bin/bash"]