LYN-7056 SurfaceDataConstants should be revised to have no terrain references

Signed-off-by: sphrose <82213493+sphrose@users.noreply.github.com>

Gems/SurfaceData/Code/Source/Editor/EditorSurfaceDataSystemComponent.h

@@ -14,6 +14,7 @@
 #include <AzFramework/Asset/AssetCatalogBus.h>
 #include <AzToolsFramework/ToolsComponents/EditorComponentBase.h>
 #include <SurfaceData/SurfaceDataTagProviderRequestBus.h>
+#include <Terrain/TerrainDataConstants.h>
 
 namespace AZ::Data
 {
@@ -22,6 +23,15 @@ namespace AZ::Data
 
 namespace SurfaceData
 {
+    namespace Constants
+    {
+        static const char* s_allTagNames[] = {
+            Constants::s_unassignedTagName,
+            Terrain::Constants::s_terrainHoleTagName,
+            Terrain::Constants::s_terrainTagName,
+        };
+    } //namespace Constants
+
     class EditorSurfaceDataSystemConfig
         : public AZ::ComponentConfig
     {
@@ -47,7 +57,6 @@ namespace SurfaceData
         static void GetRequiredServices(AZ::ComponentDescriptor::DependencyArrayType& required);
 
     private:
-
         void LoadAsset(const AZ::Data::AssetId& assetId);
         void AddAsset(AZ::Data::Asset<AZ::Data::AssetData>& asset);