Fix max_position_embeddings (4k -> 32k)

config.json

@@ -10,7 +10,7 @@
   "hidden_size": 4096,
   "initializer_range": 0.02,
   "intermediate_size": 12288,
-  "max_position_embeddings": 4096,
+  "max_position_embeddings": 32000,
   "model_type": "llama",
   "num_attention_heads": 32,
   "num_hidden_layers": 32,