fix yaml error name (#56319)

paddle/phi/api/yaml/legacy_ops.yaml

@@ -890,6 +890,7 @@
     data_type : x
   backward : sync_batch_norm_grad
   inplace : (mean -> mean_out), (variance -> variance_out)
+  optional : reserve_space
 
 - op : tile
   args : (Tensor x, IntArray repeat_times = {})

paddle/phi/api/yaml/op_compat.yaml

@@ -2724,7 +2724,7 @@
   inputs :
     {x : X, scale : Scale, bias : Bias, mean : Mean, variance : Variance}
   outputs :
-    {y : Y, mean_out : MeanOut, variance_out : VarianceOut, saved_mean : SavedMean, saved_variance : SavedVariance, reserve_space : ReserveSpace}
+    {out : Y, mean_out : MeanOut, variance_out : VarianceOut, saved_mean : SavedMean, saved_variance : SavedVariance, reserve_space : ReserveSpace}
   backward : sync_batch_norm_grad
   extra :
     attrs : [bool use_mkldnn = false, bool fuse_with_relu = false]