Update script to look into specific SGXSSL tag.

Instead of downloading and using master branch, use specific tag that we know will always work for SGX SDK.
When SGXSSL master branch change, SGX SDK shouldn't be affected.
Signed-off-by: Kryeem, Alaa alaa.kryeem@intel.com

external/sgxssl/prepare_sgxssl.sh

@@ -34,7 +34,8 @@ top_dir="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
 openssl_out_dir=$top_dir/openssl_source
 openssl_ver_name=openssl-1.1.0f
 sgxssl_github_archive=https://github.com/01org/intel-sgx-ssl/archive
-sgxssl_ver_name=master
+sgxssl_ver_name=v1.0
+sgxssl_ver=1.0
 build_script=$top_dir/build_sgxssl.sh
 server_url_path=https://www.openssl.org/source/old/1.1.0
 full_openssl_url=$server_url_path/$openssl_ver_name.tar.gz
@@ -42,11 +43,12 @@ full_openssl_url=$server_url_path/$openssl_ver_name.tar.gz
 if [ ! -f $build_script ]; then
 	wget $sgxssl_github_archive/$sgxssl_ver_name.zip -P $top_dir --no-check-certificate || exit 1
 	unzip -qq $top_dir/$sgxssl_ver_name.zip -d $top_dir || exit 1
-	mv $top_dir/intel-sgx-ssl-master/* $top_dir || exit 1
+	mv $top_dir/intel-sgx-ssl-$sgxssl_ver/* $top_dir || exit 1
 	rm $top_dir/$sgxssl_ver_name.zip || exit 1
-	rm -rf $top_dir/intel-sgx-ssl-master || exit 1
+	rm -rf $top_dir/intel-sgx-ssl-$sgxssl_ver || exit 1
 fi
 
+
 if [ ! -f $openssl_out_dir/$openssl_ver_name.tar.gz ]; then
 	wget $full_openssl_url -P $openssl_out_dir --no-check-certificate || exit 1
 fi