Enabled instancing on the terrain test

com.unity.testing.srp.lightweight/Tests/Scenes/035_Shader_TerrainShaders.unity

   m_HeightmapMaximumLOD: 0
   m_CastShadows: 1
   m_DrawHeightmap: 1
-  m_DrawInstanced: 0
+  m_DrawInstanced: 1
   m_DrawTreesAndFoliage: 1
   m_ReflectionProbeUsage: 1
   m_MaterialType: 3
   m_PreserveTreePrototypeLayers: 0
   m_ScaleInLightmap: 0.0512
   m_LightmapParameters: {fileID: 15203, guid: 0000000000000000f000000000000000, type: 0}
+  m_GroupingID: 0
+  m_AllowAutoConnect: 0
 --- !u!4 &745712513
 Transform:
   m_ObjectHideFlags: 0

com.unity.testing.srp.lightweight/Tests/Scenes/035_Shader_TerrainShaders/Terrain.mat

 Material:
   serializedVersion: 6
   m_ObjectHideFlags: 0
-  m_PrefabParentObject: {fileID: 0}
-  m_PrefabInternal: {fileID: 0}
+  m_CorrespondingSourceObject: {fileID: 0}
+  m_PrefabInstance: {fileID: 0}
+  m_PrefabAsset: {fileID: 0}
-  m_EnableInstancingVariants: 0
+  m_EnableInstancingVariants: 1
   m_DoubleSidedGI: 0
   m_CustomRenderQueue: -1
   stringTagMap: {}
     - _SmoothnessTextureChannel: 0
     - _SpecularHighlights: 1
     - _SrcBlend: 1
+    - _TERRAIN_INSTANCED_PERPIXEL_NORMAL: 0
     - _UVSec: 0
     - _WorkflowMode: 1
     - _ZWrite: 1