IVGCVSW-6453 'Move the ArmNN Test Utils code to a physically separate directory'

* Created include/armnnTestUtils directory
* Moved Arm NN test utils files into armnnTestUtils directory

Signed-off-by: Sadik Armagan <sadik.armagan@arm.com>
Change-Id: I03ac54c645c41c52650c4c03b6a58fb1481fef5d
diff --git a/src/backends/cl/test/ClOptimizedNetworkTests.cpp b/src/backends/cl/test/ClOptimizedNetworkTests.cpp
index 4c2a474..cf17eae 100644
--- a/src/backends/cl/test/ClOptimizedNetworkTests.cpp
+++ b/src/backends/cl/test/ClOptimizedNetworkTests.cpp
@@ -7,7 +7,7 @@
 
 #include <Network.hpp>
 
-#include <test/GraphUtils.hpp>
+#include <GraphUtils.hpp>
 
 #include <cl/ClWorkloadFactory.hpp>
 #include <cl/ClBackendContext.hpp>