Update to a hopefully more future proof FSF address

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
diff --git a/hw/tc6393xb_template.h b/hw/tc6393xb_template.h
index 2c5fb67..37bf833 100644
--- a/hw/tc6393xb_template.h
+++ b/hw/tc6393xb_template.h
@@ -18,8 +18,7 @@
  * GNU General Public License for more details.
  *
  * You should have received a copy of the GNU General Public License along
- * with this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ * with this program; if not, see <http://www.gnu.org/licenses/>.
  */
 
 #if BITS == 8