MLCE-754 'Improve operator support error/warning from Arm NN Delegate'

* Improved error reporting on armnn_delegate

Signed-off-by: Sadik Armagan <sadik.armagan@arm.com>
Change-Id: I1bd131fb56d64b32b1fafad0465256178720226c
diff --git a/delegate/src/Split.hpp b/delegate/src/Split.hpp
index ad55e53..66e2295 100644
--- a/delegate/src/Split.hpp
+++ b/delegate/src/Split.hpp
@@ -117,7 +117,7 @@
     {
         // Check if supported
         bool isSupported = false;
-        FORWARD_LAYER_SUPPORT_FUNC(__func__,
+        FORWARD_LAYER_SUPPORT_FUNC("SPLIT",
                                    tfLiteContext,
                                    IsSplitterSupported,
                                    delegateData.m_Backends,
@@ -309,7 +309,7 @@
     {
         // Check if supported
         bool isSupported = false;
-        FORWARD_LAYER_SUPPORT_FUNC(__func__,
+        FORWARD_LAYER_SUPPORT_FUNC("SPLIT",
                                    tfLiteContext,
                                    IsSplitterSupported,
                                    delegateData.m_Backends,