add opencl download ways

cmake/external_libs/opencl.cmake

@@ -1,4 +1,16 @@
-if(ENABLE_GITEE)
+if(ENABLE_GITEE_EULER)
+    set(GIT_REPOSITORY "git@gitee.com:src-openeuler/opencl-clhpp.git")
+    set(GIT_TAG "7347fa1bb52ebee9f3d6c44ff65ef3c4253cab79")
+    set(MD5 "d41d8cd98f00b204e9800998ecf8427e")
+
+    __download_pkg_with_git(OpenCL-CLHPP ${GIT_REPOSITORY} ${GIT_TAG} ${MD5})
+    set(OPENCL_CLHPP_SRC "${TOP_DIR}/mindspore/lite/build/_deps/opencl-clhpp-src")
+    execute_process(COMMAND tar -xf ${OPENCL_CLHPP_SRC}/v2.0.12.tar.gz --strip-components 1 -C ${OPENCL_CLHPP_SRC})
+
+    set(OPENCL_HEADER_SRC "${TOP_DIR}/mindspore/lite/build/_deps/opencl-headers-src")
+    execute_process(COMMAND mkdir -p ${OPENCL_HEADER_SRC})
+    execute_process(COMMAND tar -xf ${OPENCL_CLHPP_SRC}/v2020.12.18.tar.gz --strip-components 1 -C ${OPENCL_HEADER_SRC})
+elseif(ENABLE_GITEE)
     set(REQ_URL "https://gitee.com/mirrors/OpenCL-Headers/repository/archive/v2020.12.18.tar.gz")
     set(MD5 "9a34e50198ac54b795bf3822bb6e429a")
     __download_pkg(OpenCL-Headers ${REQ_URL} ${MD5})