message: Fix packaging for Tensorflow JNI GPU package.
  The equivalent fix for the CPU JNI package was submitted as
diff: @@ -120,6 +120,11 @@ download_libtensorflow_jni_gpu() {
  curl -L "${RELEASE_URL_PREFIX}/libtensorflow_jni-gpu-linux-x86_64-${TF_VERSION}.tar.gz" | tar -xvz -C linux-x86_64
  curl -L "${RELEASE_URL_PREFIX}/libtensorflow_jni-gpu-windows-x86_64-${TF_VERSION}.zip" -o /tmp/windows.zip
  + FRAMEWORK_SO="$(readlink -f linux-x86_64/libtensorflow_framework.so)"
  + rm linux-x86_64/libtensorflow_framework.so
  + rm "linux-x86_64/libtensorflow_framework.so.${MAJOR_VERSION}"
  + mv "${FRAMEWORK_SO}" "linux-x86_64/libtensorflow_framework.so.${MAJOR_VERSION}"
  +
  unzip /tmp/windows.zip -d windows-x86_64
  rm -f /tmp/windows.zip
  