IVGCVSW-3601 Fix skipped VTS Concatenate Tests

 * Fixed Skipped VTS Concatenate Tests.

Signed-off-by: Mike Kelly <mike.kelly@arm.com>
Change-Id: I29e7dcdedefc0e9c54f86fa5de23aa714c469585
diff --git a/1.2/HalPolicy.hpp b/1.2/HalPolicy.hpp
index 8b8d501..4b1ab07 100644
--- a/1.2/HalPolicy.hpp
+++ b/1.2/HalPolicy.hpp
@@ -35,6 +35,8 @@
 
     static bool ConvertBatchToSpaceNd(const Operation& operation, const Model& model, ConversionData& data);
 
+    static bool ConvertConcatenation(const Operation& operation, const Model& model, ConversionData& data);
+
     static bool ConvertConv2d(const Operation& operation, const Model& model, ConversionData& data);
 
     static bool ConvertDepthwiseConv2d(const Operation& operation, const Model& model, ConversionData& data);