Increase light indices count per cluster.

Increase the memory allocated for the cluster light list.  Just allocate the maximum possible storage based on a max of 32 lights per cluster.

ScriptableRenderPipeline/HDRenderPipeline/HDRP/Lighting/LightLoop/LightLoop.cs

 
         int NumLightIndicesPerClusteredTile()
         {
-            return 8 * (1 << k_Log2NumClusters);       // total footprint for all layers of the tile (measured in light index entries)
+            return 32 * (1 << k_Log2NumClusters);       // total footprint for all layers of the tile (measured in light index entries)
         }
 
         public void AllocResolutionDependentBuffers(int width, int height, bool stereoEnabled)