support auto generate for dirichlet (#51601)

* support auto generate for dirichlet

* use uppercase in args

* use op_compat for name mapping

Author: RedContritio

paddle/fluid/operators/dirichlet_op.cc

@@ -448,14 +448,6 @@
     func : depthwise_conv2d_transpose
   backward : depthwise_conv2d_transpose_grad
 
-- op : dirichlet
-  args: (Tensor alpha)
-  output: Tensor(out)
-  infer_meta:
-    func: DirichletInferMeta
-  kernel:
-    func: dirichlet
-
 - op : distribute_fpn_proposals
   args : (Tensor fpn_rois, Tensor rois_num, int min_level, int max_level, int refer_level, int refer_scale, bool pixel_offset)
   output : Tensor[](multi_fpn_rois){max_level - min_level + 1}, Tensor[](multi_level_rois_num){max_level - min_level + 1}, Tensor(restore_index)

paddle/phi/api/yaml/legacy_ops.yaml

@@ -458,6 +458,12 @@
   outputs :
     out : Out
 
+- op : dirichlet
+  inputs :
+    alpha : Alpha
+  outputs :
+    out : Out
+
 - op : dist
   inputs :
     {x : X, y : Y}

paddle/phi/api/yaml/op_compat.yaml

@@ -384,6 +384,14 @@
     func : digamma
   backward : digamma_grad
 
+- op : dirichlet
+  args: (Tensor alpha)
+  output: Tensor(out)
+  infer_meta:
+    func: DirichletInferMeta
+  kernel:
+    func: dirichlet
+
 - op : dist
   args : (Tensor x, Tensor y, float p = 2.0)
   output : Tensor