fix xpu bugs

Author: huangjiyi

paddle/phi/kernels/xpu/label_smooth_kernel.cc

@@ -12,7 +12,7 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 #include "paddle/phi/kernels/label_smooth_kernel.h"
-#include "paddle/phi/backends/xpu/xpu_context.h"
+#include "paddle/phi/backends/xpu/enforce_xpu.h"
 #include "paddle/phi/core/kernel_registry.h"
 namespace phi {