IVGCVSW-5378 'TfLiteDelegate: Implement the ElementWiseUnary operators '

* Moved ElementwiseUnary operators tests into single file
* Implemented FP32 test for supported ElementwiseUnary operators

Signed-off-by: Sadik Armagan <sadik.armagan@arm.com>
Change-Id: I4b7eab190c3c8edb50927b8e1e94dd353597efcb
diff --git a/delegate/src/armnn_delegate.cpp b/delegate/src/armnn_delegate.cpp
index 5cbdb6f..82cf573 100644
--- a/delegate/src/armnn_delegate.cpp
+++ b/delegate/src/armnn_delegate.cpp
@@ -130,7 +130,7 @@
         {
             if (std::find(supportedDevices.cbegin(), supportedDevices.cend(), backend) == supportedDevices.cend())
             {
-                TFLITE_LOG_PROD_ONCE(tflite::TFLITE_LOG_INFO,
+                TFLITE_LOG_PROD(tflite::TFLITE_LOG_INFO,
                     "TfLiteArmnnDelegate: Requested unknown backend %s", backend.Get().c_str());
             }
             else