token_dispatcher support expert_num 64 (#11066)

Author: blacksheep-Aristotle

slm/model_zoo/gpt-3/external_ops/token_dispatcher_utils/utils.h

@@ -124,5 +124,6 @@ __device__ __forceinline__ void vectorized_memcpy(const T* src,
     PD_SWITCH_NUM_EXPERTS_IMPL(__num_expert, 8, __VA_ARGS__);    \
     PD_SWITCH_NUM_EXPERTS_IMPL(__num_expert, 16, __VA_ARGS__);   \
     PD_SWITCH_NUM_EXPERTS_IMPL(__num_expert, 32, __VA_ARGS__);   \
+    PD_SWITCH_NUM_EXPERTS_IMPL(__num_expert, 64, __VA_ARGS__);   \
     PD_THROW("Unsupported expert number %d", int(__num_expert)); \
   } while (0)