IVGCVSW-2398 Add no-op factory implementations for all backends for the
Equal operation

 * Add QueueDescriptor in WorkloadData.hpp
 * Add CreateEqual function in WorkloadFactory.hpp
 * Added stub implementation of the CreateEqual function in RefWorkloadFactory,
   NeonWorkloadFactory and ClWorkloadFactory

Change-Id: Iec6dc2f989c67fa6f0c32cfb93508995c8580783
diff --git a/src/backends/backendsCommon/test/IsLayerSupportedTestImpl.hpp b/src/backends/backendsCommon/test/IsLayerSupportedTestImpl.hpp
index dc4f05e..d4c5fe4 100644
--- a/src/backends/backendsCommon/test/IsLayerSupportedTestImpl.hpp
+++ b/src/backends/backendsCommon/test/IsLayerSupportedTestImpl.hpp
@@ -336,6 +336,8 @@
 
 DECLARE_LAYER_POLICY_2_PARAM(DepthwiseConvolution2d)
 
+DECLARE_LAYER_POLICY_1_PARAM(Equal)
+
 DECLARE_LAYER_POLICY_2_PARAM(FakeQuantization)
 
 DECLARE_LAYER_POLICY_1_PARAM(Floor)