IVGCVSW-6382 Add Concat operator support to ONNX parser

Signed-off-by: Narumol Prangnawarat <narumol.prangnawarat@arm.com>
Change-Id: I435723160e9b639a70e0b48ee9d722d306461291
diff --git a/CMakeLists.txt b/CMakeLists.txt
index bebee7f..ebea9ae 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -756,6 +756,7 @@
             src/armnnOnnxParser/test/Addition.cpp
             src/armnnOnnxParser/test/BatchNorm.cpp
             src/armnnOnnxParser/test/Clip.cpp
+            src/armnnOnnxParser/test/Concat.cpp
             src/armnnOnnxParser/test/Const.cpp
             src/armnnOnnxParser/test/Constructor.cpp
             src/armnnOnnxParser/test/Conv2D.cpp