fix bug: reinit_exclude if fitting has this method

Author: ChiahsinChu

deepmd/pt/model/atomic_model/dp_atomic_model.py

@@ -64,7 +64,8 @@ def __init__(
         self.rcut = self.descriptor.get_rcut()
         self.sel = self.descriptor.get_sel()
         self.fitting_net = fitting
-        self.fitting_net.reinit_exclude(self.atom_exclude_types)
+        if hasattr(self.fitting_net, "reinit_exclude"):
+            self.fitting_net.reinit_exclude(self.atom_exclude_types)
         super().init_out_stat()
         self.enable_eval_descriptor_hook = False
         self.enable_eval_fitting_last_layer_hook = False