[11.x] [HDRP] [bugfix 1292501] - Ensure all passes request the DiffusionProfile for SRP batcher compatibility (#2790)

* Fix for 1292501  (cherry pick of 0104bdd)

# Conflicts:
#	com.unity.render-pipelines.high-definition/Editor/Material/ShaderGraph/HDShaderPasses.cs

* Adding changelog

Author: Chris Tchou

com.unity.render-pipelines.high-definition/CHANGELOG.md

@@ -58,6 +58,7 @@ The version number for this package has increased due to a version update of a r
 - Fixed SSGI texture allocation when not using the RenderGraph.
 - Fixed NullReference Exception when setting Max Shadows On Screen to 0 in the HDRP asset.
 - Fixed issue with saving some quality settings in volume overrides  (case 1293747)
+- Fixed issue where some ShaderGraph generated shaders were not SRP compatible because of UnityPerMaterial cbuffer layout mismatches [1292501] (https://issuetracker.unity3d.com/issues/a2-some-translucent-plus-alphaclipping-shadergraphs-are-not-srp-batcher-compatible)
 
 ### Changed
 - Volume Manager now always tests scene culling masks. This was required to fix hybrid workflow.

com.unity.render-pipelines.high-definition/Editor/Material/ShaderGraph/HDShaderPasses.cs

@@ -169,6 +169,7 @@ static public PassDescriptor GenerateShadowCaster(bool supportLighting)
                     BlockFields.SurfaceDescription.AlphaClipThreshold,
                     HDBlockFields.SurfaceDescription.AlphaClipThresholdShadow,
                     HDBlockFields.SurfaceDescription.DepthOffset,
+                    HDBlockFields.SurfaceDescription.DiffusionProfileHash   // not used, but keeps the UnityPerMaterial cbuffer identical
                 },
 
                 // Collections
@@ -545,13 +546,15 @@ public static PassDescriptor GenerateTransparentDepthPrepass(bool supportLightin
                     BlockFields.SurfaceDescription.NormalWS,
                     BlockFields.SurfaceDescription.NormalOS,
                     BlockFields.SurfaceDescription.Smoothness,
+                    HDBlockFields.SurfaceDescription.DiffusionProfileHash   // not used, but keeps the UnityPerMaterial cbuffer identical
                 } :
                 new BlockFieldDescriptor[]
                 {
                     BlockFields.SurfaceDescription.Alpha,
                     HDBlockFields.SurfaceDescription.AlphaClipThresholdDepthPrepass,
                     BlockFields.SurfaceDescription.AlphaClipThreshold,
                     HDBlockFields.SurfaceDescription.DepthOffset,
+                    HDBlockFields.SurfaceDescription.DiffusionProfileHash   // not used, but keeps the UnityPerMaterial cbuffer identical
                 },
 
                 // Collections