add squeeze2 and unsqueeze2 pbtxt (#33343)

* Create squeeze2.pbtxt

* Create unsqueeze2.pbtxt

* Update unsqueeze2.pbtxt

* Update squeeze2.pbtxt

paddle/fluid/operators/compat/squeeze2.pbtxt

+type: "squeeze2"
+def {
+  inputs {
+    name: "X"
+  }
+  outputs {
+    name: "Out"
+  }
+  outputs {
+    name: "XShape"
+  }
+  attrs {
+    name: "axes"
+    type: INTS
+  }
+}
+extra {
+  attrs {
+    name: "op_role"
+    type: INT
+  }
+  attrs {
+    name: "op_role_var"
+    type: STRINGS
+  }
+  attrs {
+    name: "op_namescope"
+    type: STRING
+  }
+  attrs {
+    name: "op_callstack"
+    type: STRINGS
+  }
+  attrs {
+    name: "op_device"
+    type: STRING
+  }
+}

paddle/fluid/operators/compat/unsqueeze2.pbtxt

+type: "unsqueeze2"
+def {
+  inputs {
+    name: "X"
+  }
+  inputs {
+    name: "AxesTensor"
+  }
+  inputs {
+    name: "AxesTensorList"
+  }
+  outputs {
+    name: "Out"
+  }
+  outputs {
+    name: "XShape"
+  }
+  attrs {
+    name: "axes"
+    type: INTS
+  }
+}
+extra {
+  attrs {
+    name: "op_role"
+    type: INT
+  }
+  attrs {
+    name: "op_role_var"
+    type: STRINGS
+  }
+  attrs {
+    name: "op_namescope"
+    type: STRING
+  }
+  attrs {
+    name: "op_callstack"
+    type: STRINGS
+  }
+  attrs {
+    name: "op_device"
+    type: STRING
+  }
+}