IVGCVSW-6293 Add Unit test int8 Channel Shuffle

Signed-off-by: Teresa Charlin <teresa.charlinreyes@arm.com>
Change-Id: Icf69b4c707014c5ae76425ad326bd2826381f305
diff --git a/src/backends/neon/test/NeonLayerTests.cpp b/src/backends/neon/test/NeonLayerTests.cpp
index 65870a3..7f32236 100644
--- a/src/backends/neon/test/NeonLayerTests.cpp
+++ b/src/backends/neon/test/NeonLayerTests.cpp
@@ -1422,6 +1422,7 @@
 // ChannelShuffle
 ARMNN_AUTO_TEST_CASE_WITH_THF(ChannelShuffle4DFloat32, ChannelShuffle4DTest<DataType::Float32>)
 ARMNN_AUTO_TEST_CASE_WITH_THF(ChannelShuffle4DQAsymmU8, ChannelShuffle4DTest<DataType::QAsymmU8>)
+ARMNN_AUTO_TEST_CASE_WITH_THF(ChannelShuffle4DQAsymmS8, ChannelShuffle4DTest<DataType::QAsymmS8>)
 
 #if defined(ARMNNREF_ENABLED)