IVGCVSW-2695 Serialize / deserialize the Maximum layer

Signed-off-by: Aron Virginas-Tar <Aron.Virginas-Tar@arm.com>
Change-Id: I6c89a40b1fc00699a048efb26966142517c3ff43
diff --git a/src/armnnSerializer/Serializer.hpp b/src/armnnSerializer/Serializer.hpp
index 9118041..3d6f1b5 100644
--- a/src/armnnSerializer/Serializer.hpp
+++ b/src/armnnSerializer/Serializer.hpp
@@ -88,6 +88,9 @@
     void VisitMinimumLayer(const armnn::IConnectableLayer* layer,
                            const char* name = nullptr) override;
 
+    void VisitMaximumLayer(const armnn::IConnectableLayer* layer,
+                           const char* name = nullptr) override;
+
     void VisitMultiplicationLayer(const armnn::IConnectableLayer* layer,
                                   const char* name = nullptr) override;