IVGCVSW-2693 Serialize/de-serialize L2Normalization

Signed-off-by: Narumol Prangnawarat <narumol.prangnawarat@arm.com>
Change-Id: I6a53ac576260383f32fb0d878b42d1251ffde94a
diff --git a/src/armnnSerializer/ArmnnSchema.fbs b/src/armnnSerializer/ArmnnSchema.fbs
index a5fb4b6..36389b7 100644
--- a/src/armnnSerializer/ArmnnSchema.fbs
+++ b/src/armnnSerializer/ArmnnSchema.fbs
@@ -111,7 +111,8 @@
     StridedSlice = 27,
     Gather = 28,
     Mean = 29,
-    Merger = 30
+    Merger = 30,
+    L2Normalization = 31
 }
 
 // Base layer table to be used as part of other layers
@@ -203,6 +204,15 @@
     base:BindableLayerBase;
 }
 
+table L2NormalizationLayer {
+    base:LayerBase;
+    descriptor:L2NormalizationDescriptor;
+}
+
+table L2NormalizationDescriptor {
+    dataLayout:DataLayout = NCHW;
+}
+
 table MinimumLayer {
     base:LayerBase;
 }
@@ -463,7 +473,8 @@
     StridedSliceLayer,
     GatherLayer,
     MeanLayer,
-    MergerLayer
+    MergerLayer,
+    L2NormalizationLayer
 }
 
 table AnyLayer {