COMPMID-2161 [NEON] Create IWeightManager class

Change-Id: I1a9a46da2f98e896b825099151b56d1d8271dd31
Signed-off-by: Michalis Spyrou <michalis.spyrou@arm.com>
Reviewed-on: https://review.mlplatform.org/c/1915
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: Georgios Pinitas <georgios.pinitas@arm.com>
Tested-by: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/graph/backends/CL/CLDeviceBackend.cpp b/src/graph/backends/CL/CLDeviceBackend.cpp
index 9971e4f..9b7c879 100644
--- a/src/graph/backends/CL/CLDeviceBackend.cpp
+++ b/src/graph/backends/CL/CLDeviceBackend.cpp
@@ -204,6 +204,11 @@
 
     return mm;
 }
+
+std::shared_ptr<arm_compute::IWeightsManager> CLDeviceBackend::create_weights_manager()
+{
+    return nullptr;
+}
 } // namespace backends
 } // namespace graph
 } // namespace arm_compute