IVGCVSW-1946: Remove armnn/src from the include paths

Change-Id: I663a0a0fccb43ee960ec070121a59df9db0bb04e
diff --git a/src/backends/cl/test/ClOptimizedNetworkTests.cpp b/src/backends/cl/test/ClOptimizedNetworkTests.cpp
index b39a4b1..cd8a770 100644
--- a/src/backends/cl/test/ClOptimizedNetworkTests.cpp
+++ b/src/backends/cl/test/ClOptimizedNetworkTests.cpp
@@ -4,11 +4,11 @@
 //
 
 #include <armnn/ArmNN.hpp>
-#include <armnn/Network.hpp>
+#include <Network.hpp>
 
-#include <armnn/test/GraphUtils.hpp>
+#include <test/GraphUtils.hpp>
 
-#include <backends/cl/ClWorkloadFactory.hpp>
+#include <cl/ClWorkloadFactory.hpp>
 
 #include <boost/test/unit_test.hpp>