Update Toolbox to 1.2.1, Fixes Address Bug

Author: dnorthcote

pynq_hough_transform.prj

@@ -7,7 +7,7 @@
     <param.summary>HDL Coder reference design to generate Line Hough Transform architectures for the PYNQ software framework.</param.summary>
     <param.description />
     <param.screenshot>${PROJECT_ROOT}\hepRD\plotly_hps_surface.png</param.screenshot>
-    <param.version>1.2</param.version>
+    <param.version>1.2.1</param.version>
     <param.output>${PROJECT_ROOT}\PYNQ Hough Transform Support Package.mltbx</param.output>
     <param.products.name />
     <param.products.id />