IVGCVSW-1900 : CL backend folder structure

* moving backends/ClWorkloads to backends/cl
* and moving pure Cl workload related code to
  backends/cl/workloads

Change-Id: I019a3c6b4da5e7a23074bf03fb057e63199ad129
diff --git a/src/backends/reference/workloads/RefBatchNormalizationFloat32Workload.hpp b/src/backends/reference/workloads/RefBatchNormalizationFloat32Workload.hpp
index 15c843c..17f80ca 100644
--- a/src/backends/reference/workloads/RefBatchNormalizationFloat32Workload.hpp
+++ b/src/backends/reference/workloads/RefBatchNormalizationFloat32Workload.hpp
@@ -5,8 +5,8 @@
 
 #pragma once
 
-#include "backends/Workload.hpp"
-#include "backends/WorkloadData.hpp"
+#include <backends/Workload.hpp>
+#include <backends/WorkloadData.hpp>
 
 namespace armnn
 {