Toolchain: Move libtorch from stage7 to stage6

tools/toolchain/scripts/stage6/install_libtorch.sh

@@ -45,7 +45,7 @@ case "${with_libtorch}" in
       unzip -q ${archive_file}
       mv libtorch ${pkg_install_dir}
 
-      write_checksums "${install_lock_file}" "${SCRIPT_DIR}/stage7/$(basename "${SCRIPT_NAME}")"
+      write_checksums "${install_lock_file}" "${SCRIPT_DIR}/stage6/$(basename "${SCRIPT_NAME}")"
     fi
     LIBTORCH_CXXFLAGS="-I${pkg_install_dir}/include"
     LIBTORCH_LDFLAGS="-L'${pkg_install_dir}/lib' -Wl,-rpath='${pkg_install_dir}/lib'"

tools/toolchain/scripts/stage6/install_stage6.sh

@@ -5,6 +5,7 @@
 
 ./scripts/stage6/install_gsl.sh
 ./scripts/stage6/install_plumed.sh
+./scripts/stage6/install_libtorch.sh
 ./scripts/stage6/install_deepmd.sh
 
 #EOF

tools/toolchain/scripts/stage7/install_stage7.sh

@@ -7,7 +7,6 @@
 ./scripts/stage7/install_libvdwxc.sh
 ./scripts/stage7/install_spglib.sh
 ./scripts/stage7/install_libvori.sh
-./scripts/stage7/install_libtorch.sh
 ./scripts/stage7/install_libsmeagol.sh
 
 #EOF