Set up the framework to choose the default LWS

Resolve COMPMID-4486

Signed-off-by: Giorgio Arena <giorgio.arena@arm.com>
Change-Id: Ib38b7943bd776a6d75d1da163908724c49eae73d
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/5864
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Reviewed-by: Gian Marco Iodice <gianmarco.iodice@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/core/gpu/cl/kernels/ClPool2dKernel.cpp b/src/core/gpu/cl/kernels/ClPool2dKernel.cpp
index 0e15bff..9d5a24f 100644
--- a/src/core/gpu/cl/kernels/ClPool2dKernel.cpp
+++ b/src/core/gpu/cl/kernels/ClPool2dKernel.cpp
@@ -205,6 +205,7 @@
 ClPool2dKernel::ClPool2dKernel()
     : _pool_info(), _data_layout(DataLayout::UNKNOWN), _border_size(0), _num_elems_processed_per_iteration(1)
 {
+    _type = CLKernelType::POOL;
 }
 
 BorderSize ClPool2dKernel::border_size() const