IVGCVSW-3211 Refactor reference Rsqrt workload

Change-Id: Ia413c6b5352dbb3390e7d84e837a542c24ae8813
Signed-off-by: nikraj01 <nikhil.raj@arm.com>
diff --git a/src/backends/reference/workloads/RefRsqrtWorkload.hpp b/src/backends/reference/workloads/RefRsqrtWorkload.hpp
new file mode 100644
index 0000000..6c8ad5b
--- /dev/null
+++ b/src/backends/reference/workloads/RefRsqrtWorkload.hpp
@@ -0,0 +1,21 @@
+//
+// Copyright © 2017 Arm Ltd. All rights reserved.
+// SPDX-License-Identifier: MIT
+//
+
+#pragma once
+
+#include <backendsCommon/Workload.hpp>
+#include <backendsCommon/WorkloadData.hpp>
+
+namespace armnn
+{
+
+class RefRsqrtWorkload : public BaseWorkload<RsqrtQueueDescriptor>
+{
+public:
+    using BaseWorkload<RsqrtQueueDescriptor>::BaseWorkload;
+    virtual void Execute() const override;
+};
+
+} //namespace armnn