IVGCVSW-3900 Add deserialization test for DepthToSpace

* Fixed bug in DepthToSpaceLayer::InferOutputShapes by removing
  leftover throw UnimplementedException
* Added Deserializer/DepthToSpaceFloat32 deserialization test

Signed-off-by: Aron Virginas-Tar <Aron.Virginas-Tar@arm.com>
Change-Id: I8fc31d0270b4de1dac45ee12c2b798df81f312a7
diff --git a/CMakeLists.txt b/CMakeLists.txt
index aab7202..90eb032 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -725,6 +725,7 @@
             src/armnnDeserializer/test/DeserializeBatchNormalization.cpp
             src/armnnDeserializer/test/DeserializeConstant.cpp
             src/armnnDeserializer/test/DeserializeConvolution2d.cpp
+            src/armnnDeserializer/test/DeserializeDepthToSpace.cpp
             src/armnnDeserializer/test/DeserializeDivision.cpp
             src/armnnDeserializer/test/DeserializeEqual.cpp
             src/armnnDeserializer/test/DeserializeFloor.cpp