IVGCVSW-3813 Add Unary Elementwise Operation 'NEG' support to the android-nn-driver

* Implemented ClNegWorkload
* Implemented NeonNegWorkload
* Enabled 'NEG' operator on CL and Neon as well as Ref
* Implemented unit tests for 'NEG' operator

Signed-off-by: Sadik Armagan <sadik.armagan@arm.com>
Change-Id: I3d7a892692716636cae6bdf8ddd238e3d1ea064f
diff --git a/src/backends/cl/test/ClLayerTests.cpp b/src/backends/cl/test/ClLayerTests.cpp
index a79f1ca..df80da2 100644
--- a/src/backends/cl/test/ClLayerTests.cpp
+++ b/src/backends/cl/test/ClLayerTests.cpp
@@ -949,6 +949,14 @@
 ARMNN_AUTO_TEST_CASE(ArgMaxHeightQAsymm8, ArgMaxHeightTest<DataType::QAsymmU8>)
 ARMNN_AUTO_TEST_CASE(ArgMinWidthQAsymm8, ArgMinWidthTest<DataType::QAsymmU8>)
 
+// Neg
+ARMNN_AUTO_TEST_CASE(Neg2d, Neg2dTest<DataType::Float32>)
+ARMNN_AUTO_TEST_CASE(Neg3d, Neg3dTest<DataType::Float32>)
+ARMNN_AUTO_TEST_CASE(NegZero, NegZeroTest<DataType::Float32>)
+ARMNN_AUTO_TEST_CASE(NegNegative, NegNegativeTest<DataType::Float32>)
+ARMNN_AUTO_TEST_CASE(Neg2dFloat16, Neg2dTest<DataType::Float16>)
+ARMNN_AUTO_TEST_CASE(Neg3dFloat16, Neg3dTest<DataType::Float16>)
+
 #if defined(ARMNNREF_ENABLED)
 
 // The ARMNN_COMPARE_REF_AUTO_TEST_CASE and the ARMNN_COMPARE_REF_FIXTURE_TEST_CASE test units are not available