IVGCVSW-5420 'Add CL support for CAST'

Signed-off-by: Sadik Armagan <sadik.armagan@arm.com>
Change-Id: I1bbf1f2edf7282cb69b99e22de1b8a2fe6e443c2
diff --git a/src/backends/cl/ClLayerSupport.cpp b/src/backends/cl/ClLayerSupport.cpp
index cdbbf0c..aa83826 100644
--- a/src/backends/cl/ClLayerSupport.cpp
+++ b/src/backends/cl/ClLayerSupport.cpp
@@ -25,6 +25,7 @@
 #include "workloads/ClArgMinMaxWorkload.hpp"
 #include "workloads/ClBatchNormalizationFloatWorkload.hpp"
 #include "workloads/ClBatchToSpaceNdWorkload.hpp"
+#include "workloads/ClCastWorkload.hpp"
 #include "workloads/ClComparisonWorkload.hpp"
 #include "workloads/ClConstantWorkload.hpp"
 #include "workloads/ClConvertFp16ToFp32Workload.hpp"
@@ -239,6 +240,16 @@
                                    nullptr);
 }
 
+bool ClLayerSupport::IsCastSupported(const TensorInfo& input,
+                                     const TensorInfo& output,
+                                     Optional<std::string&> reasonIfUnsupported) const
+{
+    FORWARD_WORKLOAD_VALIDATE_FUNC(ClCastValidate,
+                                   reasonIfUnsupported,
+                                   input,
+                                   output);
+}
+
 bool ClLayerSupport::IsBatchToSpaceNdSupported(const TensorInfo& input,
                                                const TensorInfo& output,
                                                const BatchToSpaceNdDescriptor& descriptor,