IVGCVSW-7622 GpuFsa Op: Add Cast operator

  * Added cast operator support

Signed-off-by: Tracy Narine <tracy.narine@arm.com>
Change-Id: Ie12cb1559a7a059ff35e1c395bc77243499243cd
diff --git a/src/backends/gpuFsa/test/GpuFsaLayerSupportTests.cpp b/src/backends/gpuFsa/test/GpuFsaLayerSupportTests.cpp
index fee0d07..4e39a80 100644
--- a/src/backends/gpuFsa/test/GpuFsaLayerSupportTests.cpp
+++ b/src/backends/gpuFsa/test/GpuFsaLayerSupportTests.cpp
@@ -17,6 +17,24 @@
 TEST_SUITE("GpuFsaLayerSupport")
 {
 
+TEST_CASE("IsLayerSupportedCast")
+{
+    armnn::TensorInfo inputTensorInfo({1, 3, 2, 3}, armnn::DataType::Float32);
+    armnn::TensorInfo outputTensorInfo({1, 3, 2, 3}, armnn::DataType::Float16);
+
+    BaseDescriptor desc;
+
+    GpuFsaLayerSupport supportChecker;
+    std::string reasonIfNotSupported;
+    auto supported = supportChecker.IsLayerSupported(LayerType::Cast,
+                                                     {inputTensorInfo, outputTensorInfo},
+                                                     desc,
+                                                     EmptyOptional(),
+                                                     EmptyOptional(),
+                                                     reasonIfNotSupported);
+    CHECK(supported);
+}
+
 TEST_CASE("IsLayerSupportedGpuFsaConv2d")
 {
     TensorInfo inputInfo ({ 1, 5, 5, 1 }, DataType::Float32);