IVGCVSW-3722 Add front end support for ArgMinMax

Change-Id: I31c5616bea3097f30cde68442d3222e0b0fe2235
Signed-off-by: Nikhil Raj <nikhil.raj@arm.com>
diff --git a/src/backends/backendsCommon/WorkloadFactory.hpp b/src/backends/backendsCommon/WorkloadFactory.hpp
index d0164b2..6fd334b 100644
--- a/src/backends/backendsCommon/WorkloadFactory.hpp
+++ b/src/backends/backendsCommon/WorkloadFactory.hpp
@@ -58,6 +58,9 @@
     virtual std::unique_ptr<IWorkload> CreateAddition(const AdditionQueueDescriptor& descriptor,
                                                       const WorkloadInfo&            info) const;
 
+    virtual std::unique_ptr<IWorkload> CreateArgMinMax(const ArgMinMaxQueueDescriptor& descriptor,
+                                                       const WorkloadInfo&            info) const;
+
     virtual std::unique_ptr<IWorkload> CreateBatchNormalization(const BatchNormalizationQueueDescriptor& descriptor,
                                                                 const WorkloadInfo& info) const;