[CPU] FullyConnected acceleration for BF16 compressed weights

Author: dmitrygo

src/plugins/intel_cpu/src/nodes/executors/dnnl/dnnl_fullyconnected_primitive.cpp

@@ -122,7 +122,7 @@ bool DnnlFCPrimitive::useWeightsDecompressionImpl(const ov::element::Type inputT
             // f16c kernel saves memory footprint with additional decompression computational overhead
             // which is only meaningful on LLM with small batch-size.
             // TODO: fall-back to use f32 weights on large batch-size
-            if (inputType == f32 && weightsType == f16)
+            if (inputType == f32 && one_of(weightsType, f16, bf16))
                 return true;
         }
     }