IVGCVSW-3142 Refactor reference Pooling2d workload

Signed-off-by: Teresa Charlin <teresa.charlinreyes@arm.com>
Change-Id: I94c973ab747309c0214268c9c39f6d8f3fc7b255
diff --git a/src/backends/reference/backend.mk b/src/backends/reference/backend.mk
index edf1431..6f95113 100644
--- a/src/backends/reference/backend.mk
+++ b/src/backends/reference/backend.mk
@@ -50,8 +50,7 @@
         workloads/RefNormalizationFloat32Workload.cpp \
         workloads/RefPadWorkload.cpp \
         workloads/RefPermuteWorkload.cpp \
-        workloads/RefPooling2dFloat32Workload.cpp \
-        workloads/RefPooling2dUint8Workload.cpp \
+        workloads/RefPooling2dWorkload.cpp \
         workloads/RefQuantizeWorkload.cpp \
         workloads/RefReshapeWorkload.cpp \
         workloads/RefResizeBilinearFloat32Workload.cpp \