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/ArmnnSchema.fbs b/src/armnnSerializer/ArmnnSchema.fbs
index 5787f51..b59adcf 100644
--- a/src/armnnSerializer/ArmnnSchema.fbs
+++ b/src/armnnSerializer/ArmnnSchema.fbs
@@ -98,7 +98,8 @@
     BatchToSpaceNd = 14,
     Division = 15,
     Minimum = 16,
-    Equal = 17
+    Equal = 17,
+    Maximum = 18
 }
 
 // Base layer table to be used as part of other layers
@@ -182,6 +183,10 @@
     base:LayerBase;
 }
 
+table MaximumLayer {
+    base:LayerBase;
+}
+
 table MultiplicationLayer {
     base:LayerBase;
 }
@@ -311,7 +316,8 @@
     SpaceToBatchNdLayer,
     DivisionLayer,
     MinimumLayer,
-    EqualLayer
+    EqualLayer,
+    MaximumLayer
 }
 
 table AnyLayer {