IVGCVSW-3974 Add serialization support for LOG_SOFTMAX

Signed-off-by: Sadik Armagan <sadik.armagan@arm.com>
Change-Id: I0777abc672dd7d5c9fadaed27b0e776ac591d2c7
diff --git a/src/armnnSerializer/ArmnnSchema.fbs b/src/armnnSerializer/ArmnnSchema.fbs
index 7588b9d..187a091 100644
--- a/src/armnnSerializer/ArmnnSchema.fbs
+++ b/src/armnnSerializer/ArmnnSchema.fbs
@@ -142,7 +142,8 @@
     ArgMinMax = 47,
     Slice = 48,
     DepthToSpace = 49,
-    InstanceNormalization = 50
+    InstanceNormalization = 50,
+    LogSoftmax = 51
 }
 
 // Base layer table to be used as part of other layers
@@ -273,6 +274,16 @@
     dataLayout:DataLayout;
 }
 
+table LogSoftmaxLayer {
+    base:LayerBase;
+    descriptor:LogSoftmaxDescriptor;
+}
+
+table LogSoftmaxDescriptor {
+    beta:float = 1;
+    axis:int = -1;
+}
+
 table L2NormalizationLayer {
     base:LayerBase;
     descriptor:L2NormalizationDescriptor;
@@ -748,7 +759,8 @@
     ArgMinMaxLayer,
     SliceLayer,
     DepthToSpaceLayer,
-    InstanceNormalizationLayer
+    InstanceNormalizationLayer,
+    LogSoftmaxLayer
 }
 
 table AnyLayer {