Fix error in python serializer

The recent flatbuffers version updated requires a change in the
serializer code

Signed-off-by: Eric Kunze <eric.kunze@arm.com>
Change-Id: I7f3e28af97cb9bc970811389102a3d5e33850838
diff --git a/python/serializer/tosa_serializer.py b/python/serializer/tosa_serializer.py
index 286a067..cc4c6bf 100644
--- a/python/serializer/tosa_serializer.py
+++ b/python/serializer/tosa_serializer.py
@@ -804,10 +804,10 @@
         builder = self.builder
 
         Version.Start(builder)
-        Version.Add_major(builder, TOSA_VERSION[0])
-        Version.Add_minor(builder, TOSA_VERSION[1])
-        Version.Add_patch(builder, TOSA_VERSION[2])
-        Version.Add_draft(builder, TOSA_VERSION[3])
+        Version.Add_Major(builder, TOSA_VERSION[0])
+        Version.Add_Minor(builder, TOSA_VERSION[1])
+        Version.Add_Patch(builder, TOSA_VERSION[2])
+        Version.Add_Draft(builder, TOSA_VERSION[3])
         version = Version.End(builder)
 
         fbv_region = TosaSerializer.serializeObjVec(