MLCE-545 INT8 TFLite model execution abnormal

 * Bug fix where files were being overwritten at each debug layer

Signed-off-by: Keith Davis <keith.davis@arm.com>
Change-Id: I609fdc82afcee925824efb02183c7dbc942fced0
diff --git a/src/backends/backendsCommon/test/layerTests/DebugTestImpl.cpp b/src/backends/backendsCommon/test/layerTests/DebugTestImpl.cpp
index fa9a825..e2fa8db 100644
--- a/src/backends/backendsCommon/test/layerTests/DebugTestImpl.cpp
+++ b/src/backends/backendsCommon/test/layerTests/DebugTestImpl.cpp
@@ -70,7 +70,10 @@
 
     if (toFile)
     {
+        // Given that this is dependent on an ExNet switch, we need to explicitly set the directory that the
+        //  files are stored in as this happens within the ExNet flow
         fs::path tmpDir = fs::temp_directory_path();
+        armnnUtils::Filesystem::CreateDirectory("/ArmNNIntermediateLayerOutputs");
         std::string full_path = tmpDir.generic_string() + "/ArmNNIntermediateLayerOutputs/" + layerName + ".numpy";
 
         ExecuteWorkload(*workload, memoryManager);