Add Reduction operation layer node to graph API

Signed-off-by: thecha01 <theo.charalambous@arm.com>
Change-Id: Ida819fb8c33790cc9da6d69eeb51e0599269197a
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/3931
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michele Di Giorgio <michele.digiorgio@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/arm_compute/graph/TypePrinter.h b/arm_compute/graph/TypePrinter.h
index 738bffa..22b96a0 100644
--- a/arm_compute/graph/TypePrinter.h
+++ b/arm_compute/graph/TypePrinter.h
@@ -151,6 +151,9 @@
         case NodeType::QuantizationLayer:
             os << "QuantizationLayer";
             break;
+        case NodeType::ReductionOperationLayer:
+            os << "ReductionOperationLayer";
+            break;
         case NodeType::ReorgLayer:
             os << "ReorgLayer";
             break;