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/layers/CMakeLists.txt b/src/backends/gpuFsa/layers/CMakeLists.txt
index 5e0d0e7..8ffa934 100644
--- a/src/backends/gpuFsa/layers/CMakeLists.txt
+++ b/src/backends/gpuFsa/layers/CMakeLists.txt
@@ -4,6 +4,8 @@
 #
 
 list(APPEND armnnGpuFsaBackendLayers_sources
+        GpuFsaCast.cpp
+        GpuFsaCast.hpp
         GpuFsaConvolution2d.cpp
         GpuFsaConvolution2d.hpp
         GpuFsaDepthwiseConvolution2d.cpp