qtdragon_hd -fix setting of axis tool buttons on 4th/5th axes

Miss setting it to '4', and '5' instead of 'a' axis

Author: c-morley

share/qtvcp/screens/qtdragon_hd/qtdragon_hd_handler.py

@@ -1032,7 +1032,7 @@ def chk_use_touchplate_changed(self, state):
 
     def chk_use_virtual_changed(self, state):
         codestring = "CALCULATOR" if state else "ENTRY"
-        for i in ("x", "y", "z", "a"):
+        for i in ("x", "y", "z", "4", "5"):
             self.w["axistoolbutton_" + i].set_dialog_code(codestring)
         if self.probe:
             self.probe.dialog_code = codestring