IVGCVSW-4622 Add NEON FILL Workload

* Added Neon workload for Fill Operator
* Enabled Fill operator tests on Neon
* NEFill function does not have validate() function yet
  IsLayerSupported() function return true at the moment
* Added INT32 supported type for CpuRef

Signed-off-by: Sadik Armagan <sadik.armagan@arm.com>
Change-Id: I17bf5ec13750f46322a30653e15ba2a514f61f08
diff --git a/src/backends/neon/workloads/CMakeLists.txt b/src/backends/neon/workloads/CMakeLists.txt
index 685d75b..e3b74f6 100644
--- a/src/backends/neon/workloads/CMakeLists.txt
+++ b/src/backends/neon/workloads/CMakeLists.txt
@@ -42,6 +42,8 @@
     NeonDetectionPostProcessWorkload.hpp
     NeonExpWorkload.cpp
     NeonExpWorkload.hpp
+    NeonFillWorkload.cpp
+    NeonFillWorkload.hpp
     NeonFloorFloatWorkload.cpp
     NeonFloorFloatWorkload.hpp
     NeonFullyConnectedWorkload.cpp