Path: Fix reference to cutting edge angle in OCL_Tool() class

The class variable name was not corrected with previously committed changes.
The correct cutting edge variable name is located in the __init__() constructor method.

src/Mod/Path/PathScripts/PathSurfaceSupport.py

@@ -2578,11 +2578,11 @@ class OCL_Tool():
         # Engraver or V-bit cutter
         # OCL -> ConeCutter::ConeCutter(diameter, angle, length)
         if (self.diameter == -1.0 or
-            self.cuttingEdgeAngle == -1.0 or self.cutEdgeHeight == -1.0):
+            self.cutEdgeAngle == -1.0 or self.cutEdgeHeight == -1.0):
             return
         self.oclTool = self.ocl.ConeCutter(
                             self.diameter,
-                            self.cuttingEdgeAngle,
+                            self.cutEdgeAngle,
                             self.cutEdgeHeight + self.lengthOffset
                         )