Update SS -> NDC

ScriptableRenderPipeline/HDRenderPipeline/Material/Lit/Resources/SubsurfaceScattering.compute

     float  maxDistance = _ShapeParams[profileID].a;
 
     // Reconstruct the view-space position corresponding to the central sample.
-    float2 centerPosSS = posInput.positionNDC;
-    float2 cornerPosSS = centerPosSS + 0.5 * _ScreenSize.zw;
-    float3 centerPosVS = ComputeViewSpacePosition(centerPosSS, centerDepth, UNITY_MATRIX_I_P);
-    float3 cornerPosVS = ComputeViewSpacePosition(cornerPosSS, centerDepth, UNITY_MATRIX_I_P);
+    float2 centerPosNDC = posInput.positionNDC;
+    float2 cornerPosNDC = centerPosNDC + 0.5 * _ScreenSize.zw;
+    float3 centerPosVS  = ComputeViewSpacePosition(centerPosNDC, centerDepth, UNITY_MATRIX_I_P);
+    float3 cornerPosVS  = ComputeViewSpacePosition(cornerPosNDC, centerDepth, UNITY_MATRIX_I_P);
 
     // Rescaling the filter is equivalent to inversely scaling the world.
     float mmPerUnit  = MILLIMETERS_PER_METER * (_WorldScales[profileID].x / distScale);