[NPU] support fp16 for npu accuracy op (#31797)

paddle/fluid/operators/metrics/accuracy_op_npu.cc

@@ -9,7 +9,6 @@ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License. */
 
-#ifdef PADDLE_WITH_ASCEND_CL
 #include <memory>
 #include <string>
 
@@ -119,6 +118,7 @@ namespace ops = paddle::operators;
 
 REGISTER_OP_NPU_KERNEL(
     accuracy, ops::AccuracyNPUKernel<paddle::platform::NPUDeviceContext, float>,
+    ops::AccuracyNPUKernel<paddle::platform::NPUDeviceContext,
+                           paddle::platform::float16>,
     ops::AccuracyNPUKernel<paddle::platform::NPUDeviceContext, int>,
     ops::AccuracyNPUKernel<paddle::platform::NPUDeviceContext, int64_t>);
-#endif