Implement Minimum Workload Size (MWS) in all CPPKernels used by small networks

 * create get_mws method in ICPPKernel class that retuns default value for all kernels
 * overwrite the default value for all the kernels used by small networks (according to banchmark case)

Resolves COMPMID-4648

Change-Id: I46d7cae61217213279d2ee740edc73f600b6d576
Signed-off-by: Dana Zlotnik <dana.zlotnik@arm.com>
Reviewed-on: https://review.mlplatform.org/c/ml/ComputeLibrary/+/6412
Tested-by: Arm Jenkins <bsgcomp@arm.com>
Reviewed-by: SiCong Li <sicong.li@arm.com>
Comments-Addressed: Arm Jenkins <bsgcomp@arm.com>
diff --git a/src/cpu/kernels/assembly/CpuGemmAssemblyWrapperKernel.h b/src/cpu/kernels/assembly/CpuGemmAssemblyWrapperKernel.h
index 3b9a6b4..ff8b0b1 100644
--- a/src/cpu/kernels/assembly/CpuGemmAssemblyWrapperKernel.h
+++ b/src/cpu/kernels/assembly/CpuGemmAssemblyWrapperKernel.h
@@ -115,6 +115,19 @@
             _name += "/" + kernel_name_tag;
         }
     }
+    /** Return minimum workload size of the relevant kernel
+     *
+     * @param[in] platform     The CPU platform used to create the context.
+     * @param[in] thread_count Number of threads in the execution.
+     *
+     * @return[out] small_network_mws         Minimum workload size for requsted configuration.
+     */
+    size_t get_mws(const CPUInfo &platform, size_t thread_count) const override
+    {
+        ARM_COMPUTE_UNUSED(platform, thread_count);
+
+        return ICPPKernel::small_network_mws;
+    }
 
 private:
     arm_gemm::GemmCommon<TypeInput, TypeOutput> *_kernel;