IVGCVSW-3291 Add L2Normalization epsilon value to serialization

Signed-off-by: Ferran Balaguer <ferran.balaguer@arm.com>
Change-Id: Icfff3fb596a03c126a42b1d0c254a68e498df734
diff --git a/src/armnnSerializer/ArmnnSchema.fbs b/src/armnnSerializer/ArmnnSchema.fbs
index db5672f..7947893 100644
--- a/src/armnnSerializer/ArmnnSchema.fbs
+++ b/src/armnnSerializer/ArmnnSchema.fbs
@@ -224,6 +224,7 @@
 
 table L2NormalizationDescriptor {
     dataLayout:DataLayout = NCHW;
+    eps:float = 1e-12;
 }
 
 table MinimumLayer {