COMPMID-2151: Implement Fill for CL

Exposes CLMemsetKernel as a function to allow a tensor to be filled with
a constant value.

Signed-off-by: Kurtis Charnock <kurtis.charnock@arm.com>
Change-Id: I1aa75e9e3406ae28399ab817132b1f9faae1f9b6
Reviewed-on: https://eu-gerrit-1.euhpc.arm.com/c/VisualCompute/ComputeLibrary/+/211486
Tested-by: bsgcomp <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Comments-Addressed: bsgcomp <bsgcomp@arm.com>
Reviewed-on: https://review.mlplatform.org/c/2317
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Michalis Spyrou <michalis.spyrou@arm.com>
diff --git a/arm_compute/runtime/CL/CLFunctions.h b/arm_compute/runtime/CL/CLFunctions.h
index e647819..80caf7d 100644
--- a/arm_compute/runtime/CL/CLFunctions.h
+++ b/arm_compute/runtime/CL/CLFunctions.h
@@ -69,6 +69,7 @@
 #include "arm_compute/runtime/CL/functions/CLFFT2D.h"
 #include "arm_compute/runtime/CL/functions/CLFFTConvolutionLayer.h"
 #include "arm_compute/runtime/CL/functions/CLFastCorners.h"
+#include "arm_compute/runtime/CL/functions/CLFill.h"
 #include "arm_compute/runtime/CL/functions/CLFillBorder.h"
 #include "arm_compute/runtime/CL/functions/CLFlattenLayer.h"
 #include "arm_compute/runtime/CL/functions/CLFloor.h"