Fix llama type model check (#2142) [skip ci]

src/axolotl/utils/config/__init__.py

@@ -153,7 +153,7 @@ def normalize_config(cfg):
     cfg.is_llama_derived_model = (
         (
             hasattr(model_config, "model_type")
-            and model_config.model_type == ["llama", "mllama_text_model"]
+            and model_config.model_type in ["llama", "mllama_text_model"]
         )
         or cfg.is_llama_derived_model
         or "llama" in cfg.base_model.lower()