[CI][Image] Remove CPLUS_INCLUDE_PATH and add patch (#6576)

### What this PR does / why we need it?

This PR makes two changes to the openEuler Dockerfiles
(`Dockerfile.310p.openEuler`, `Dockerfile.a3.openEuler`,
`Dockerfile.openEuler`):

1. Adds the `patch` package to the `yum install` command. This utility
is required for applying patches during the build process.
2. Removes the `export CPLUS_INCLUDE_PATH` from the `vllm-ascend`
installation step. This environment variable is no longer necessary and
its removal cleans up the build configuration.

### Does this PR introduce _any_ user-facing change?

No. This only affects the build environment for developers and CI.

### How was this patch tested?

CI is expected to pass with these changes. The changes are validated by
successfully building the Docker images.

Signed-off-by: wjunLu <wjunlu217@gmail.com>

Author: wjunLu

Dockerfile.310p.openEuler

@@ -25,7 +25,7 @@ ENV SOC_VERSION=$SOC_VERSION \
     OMP_NUM_THREADS=1
 
 RUN yum update -y && \
-    yum install -y python3-pip git vim wget net-tools gcc gcc-c++ make cmake numactl-devel jemalloc && \
+    yum install -y patch python3-pip git vim wget net-tools gcc gcc-c++ make cmake numactl-devel jemalloc && \
     rm -rf /var/cache/yum
 
 RUN pip config set global.index-url ${PIP_INDEX_URL}
@@ -48,7 +48,6 @@ RUN export PIP_EXTRA_INDEX_URL=https://mirrors.huaweicloud.com/ascend/repos/pypi
     source /usr/local/Ascend/ascend-toolkit/set_env.sh && \
     source /usr/local/Ascend/nnal/atb/set_env.sh && \
     export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/Ascend/ascend-toolkit/latest/`uname -i`-linux/devlib && \
-    export CPLUS_INCLUDE_PATH=$CPLUS_INCLUDE_PATH:/usr/include/c++/12:/usr/include/c++/12/`uname -i`-openEuler-linux && \
     export SOC_VERSION=ASCEND310P3 && \
     python3 -m pip install -v -e /vllm-workspace/vllm-ascend/ --extra-index https://download.pytorch.org/whl/cpu/ && \
     python3 -m pip cache purge

Dockerfile.a3.openEuler

@@ -34,7 +34,7 @@ COPY . /vllm-workspace/vllm-ascend/
 SHELL ["/bin/bash", "-c"]
 
 RUN yum update -y && \
-    yum install -y git vim wget net-tools gcc gcc-c++ make cmake numactl-devel jemalloc && \
+    yum install -y patch git vim wget net-tools gcc gcc-c++ make cmake numactl-devel jemalloc && \
     git clone --depth 1 --branch ${MOONCAKE_TAG} https://github.com/kvcache-ai/Mooncake /vllm-workspace/Mooncake && \
     cp /vllm-workspace/vllm-ascend/tools/mooncake_installer.sh /vllm-workspace/Mooncake/ && \
     ARCH=$(uname -m) && \
@@ -62,7 +62,6 @@ RUN export PIP_EXTRA_INDEX_URL=https://mirrors.huaweicloud.com/ascend/repos/pypi
     source /usr/local/Ascend/ascend-toolkit/set_env.sh && \
     source /usr/local/Ascend/nnal/atb/set_env.sh && \
     export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/Ascend/ascend-toolkit/latest/`uname -i`-linux/devlib && \
-    export CPLUS_INCLUDE_PATH=$CPLUS_INCLUDE_PATH:/usr/include/c++/12:/usr/include/c++/12/`uname -i`-openEuler-linux && \
     python3 -m pip install -v -e /vllm-workspace/vllm-ascend/ --extra-index https://download.pytorch.org/whl/cpu/ && \
     python3 -m pip cache purge
 

Dockerfile.openEuler

@@ -34,7 +34,7 @@ COPY . /vllm-workspace/vllm-ascend/
 SHELL ["/bin/bash", "-c"]
 
 RUN yum update -y && \
-    yum install -y git vim wget net-tools gcc gcc-c++ make cmake numactl-devel jemalloc && \
+    yum install -y patch git vim wget net-tools gcc gcc-c++ make cmake numactl-devel jemalloc && \
     git clone --depth 1 --branch ${MOONCAKE_TAG} https://github.com/kvcache-ai/Mooncake /vllm-workspace/Mooncake && \
     cp /vllm-workspace/vllm-ascend/tools/mooncake_installer.sh /vllm-workspace/Mooncake/ && \
     ARCH=$(uname -m) && \
@@ -62,7 +62,6 @@ RUN export PIP_EXTRA_INDEX_URL=https://mirrors.huaweicloud.com/ascend/repos/pypi
     source /usr/local/Ascend/ascend-toolkit/set_env.sh && \
     source /usr/local/Ascend/nnal/atb/set_env.sh && \
     export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/Ascend/ascend-toolkit/latest/`uname -i`-linux/devlib && \
-    export CPLUS_INCLUDE_PATH=$CPLUS_INCLUDE_PATH:/usr/include/c++/12:/usr/include/c++/12/`uname -i`-openEuler-linux && \
     python3 -m pip install -v -e /vllm-workspace/vllm-ascend/ --extra-index https://download.pytorch.org/whl/cpu/ && \
     python3 -m pip cache purge