Fix issue with layered shader

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Material/LayeredLit/LayeredLit.shader

         }
     }
 
-    CustomEditor "Experimental.Rendering.HDPipeline.LayeredLitGUI"
+    CustomEditor "UnityEditor.Experimental.Rendering.HDPipeline.LayeredLitGUI"
 }

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Material/LayeredLit/LayeredLitData.hlsl

     // Init other parameters
     surfaceData.anisotropy = 0;
     surfaceData.specularColor = float3(0.0, 0.0, 0.0);
-    surfaceData.coatMask = 0.0f;
+    surfaceData.coatMask = 0.0;
+    surfaceData.thicknessIrid = 0.0;
 
     // Transparency parameters
     // Use thickness from SSS

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Material/LayeredLit/LayeredLitTessellation.shader

         }
     }
 
-    CustomEditor "Experimental.Rendering.HDPipeline.LayeredLitGUI"
+    CustomEditor "UnityEditor.Experimental.Rendering.HDPipeline.LayeredLitGUI"
 }