[CI Image] support CSI-NN2 in ci_qemu

* build CSI-NN2, download related toolchain and qemu

Author: alter-xp

docker/Dockerfile.ci_qemu

@@ -108,5 +108,11 @@ RUN bash /install/ubuntu_install_ethosu_driver_stack.sh
 COPY install/ubuntu_install_vela.sh /install/ubuntu_install_vela.sh
 RUN bash /install/ubuntu_install_vela.sh
 
+#Install CSI-NN2
+COPY install/ubuntu_download_csinn2_compute_lib.sh /install/ubuntu_download_csinn2_compute_lib.sh
+RUN bash /install/ubuntu_download_csinn2_compute_lib.sh
+
 # Update PATH
 ENV PATH /opt/arm/gcc-arm-none-eabi/bin:/opt/arm/FVP_Corstone_SSE-300/models/Linux64_GCC-6.4:$PATH
+ENV PATH /opt/csi-nn2/csi-nn2/tools/gcc-toolchain/bin:$PATH
+ENV PATH /opt/csi-nn2/csi-nn2/tools/qemu/bin:$PATH

docker/install/ubuntu_download_csinn2_compute_lib.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+# Licensed to the Apache Software Foundation (ASF) under one
+# or more contributor license agreements.  See the NOTICE file
+# distributed with this work for additional information
+# regarding copyright ownership.  The ASF licenses this file
+# to you under the Apache License, Version 2.0 (the
+# "License"); you may not use this file except in compliance
+# with the License.  You may obtain a copy of the License at
+#
+#   http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing,
+# software distributed under the License is distributed on an
+# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+# KIND, either express or implied.  See the License for the
+# specific language governing permissions and limitations
+# under the License.
+
+set -e
+
+install_path="/opt/csi-nn2"
+
+# Clone CSI-NN2 Compute Library source code
+git clone https://github.com/T-head-Semi/csi-nn2.git ${install_path}
+
+# download cross-compiler when not building natively.
+# riscv gcc toolchain will be downloaded to "/path/csi-nn2/tools/gcc-toolchain".
+cd ${install_path}
+./script/download_toolchain.sh
+
+# download custom QEMU to "/path/csi-nn2/tools/qemu".
+./script/download_qemu.sh
+
+# build csinn2 lib for x86 and c906
+# lib will be installed in /path/csi-nn2/install
+# for x86
+make -j4; cd x86_build; make install; cd -
+# for c906
+mkdir -p riscv_build; cd riscv_build
+cmake ../ -DBUILD_RISCV=ON; make -j4; make install; cd -
+