MLCE-360 'ReduceLayer InferOutputShape Issue'

* Updated ParseReduce() function in TfLiteParser to read correct axis data
* Remove unused m_TargetWidth and m_TargetHight from ReduceDescriptor
* Updated the ArmNN Serializer Schema

Signed-off-by: Sadik Armagan <sadik.armagan@arm.com>
Change-Id: I98b6e00ccba1d8ea8c845cb1ae28840e42339629
diff --git a/src/armnnTfLiteParser/test/Sum.cpp b/src/armnnTfLiteParser/test/Sum.cpp
index 22b19ae..177bcd5 100644
--- a/src/armnnTfLiteParser/test/Sum.cpp
+++ b/src/armnnTfLiteParser/test/Sum.cpp
@@ -90,7 +90,7 @@
 
 struct SimpleSumFixture : public SumFixture
 {
-    SimpleSumFixture() : SumFixture("[ 1, 3, 2, 4 ]", "[ 1, 1, 1, 4 ]", "[ 2 ]", "[ 1, 2 ]") {}
+    SimpleSumFixture() : SumFixture("[ 1, 3, 2, 4 ]", "[ 1, 1, 1, 4 ]", "[ 2 ]", "[ 1, 0, 0, 0,  2, 0, 0, 0 ]") {}
 };
 
 BOOST_FIXTURE_TEST_CASE(ParseSum, SimpleSumFixture)