IVGCVSW-3320 Add reference workload support for TransposeConvolution2dLayer

Signed-off-by: Aron Virginas-Tar <Aron.Virginas-Tar@arm.com>
Change-Id: Icc64f8148c9d8a0d14d772e6e4e7865e70585cd9
diff --git a/src/backends/reference/backend.mk b/src/backends/reference/backend.mk
index 849d87c..6fb17b5 100644
--- a/src/backends/reference/backend.mk
+++ b/src/backends/reference/backend.mk
@@ -60,6 +60,7 @@
         workloads/RefSpaceToDepthWorkload.cpp \
         workloads/RefStridedSliceWorkload.cpp \
         workloads/RefSplitterWorkload.cpp \
+        workloads/RefTransposeConvolution2dWorkload.cpp \
         workloads/ResizeBilinear.cpp \
         workloads/Rsqrt.cpp \
         workloads/SpaceToBatchNd.cpp \
@@ -67,7 +68,8 @@
         workloads/StridedSlice.cpp \
         workloads/StringMapping.cpp \
         workloads/Softmax.cpp \
-        workloads/Splitter.cpp
+        workloads/Splitter.cpp \
+        workloads/TransposeConvolution2d.cpp
 
 # BACKEND_TEST_SOURCES contains the list of files to be included
 # in the Android unit test build (armnn-tests) and it is picked