COMPMID-3639: (3RDPARTY_UPDATE) Move CL kernels to src

Change-Id: I10d27db788e5086adae1841e3e2441cd9b76ef84
Signed-off-by: Sang-Hoon Park <sang-hoon.park@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/4310
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/arm_compute/runtime/CL/functions/CLPriorBoxLayer.h b/arm_compute/runtime/CL/functions/CLPriorBoxLayer.h
index 9a78e77..9129bfd 100644
--- a/arm_compute/runtime/CL/functions/CLPriorBoxLayer.h
+++ b/arm_compute/runtime/CL/functions/CLPriorBoxLayer.h
@@ -24,13 +24,16 @@
 #ifndef ARM_COMPUTE_CLPRIORBOXLAYER_H
 #define ARM_COMPUTE_CLPRIORBOXLAYER_H
 
-#include "arm_compute/core/CL/kernels/CLPriorBoxLayerKernel.h"
+#include "arm_compute/core/CL/OpenCL.h"
 #include "arm_compute/core/Types.h"
 #include "arm_compute/runtime/CL/ICLSimpleFunction.h"
 
 namespace arm_compute
 {
+class CLCompileContext;
+class CLPriorBoxLayerKernel;
 class ICLTensor;
+class ITensorInfo;
 
 /** Basic function to run @ref CLPriorBoxLayerKernel. */
 class CLPriorBoxLayer : public ICLSimpleFunction