Update configuration_florence2.py

The error "only DaViT is supported for now" appears whenloading the fine-tuned model

configuration_florence2.py

@@ -77,7 +77,7 @@ class Florence2VisionConfig(PretrainedConfig):
     >>> configuration = model.config
     ```"""
 
-    model_type = "florence2_vision"
+    model_type = "davit"
     keys_to_ignore_at_inference = ["past_key_values"]
 
     def __init__(
@@ -327,7 +327,7 @@ class Florence2Config(PretrainedConfig):
         self.vocab_size = vocab_size
         self.projection_dim = projection_dim
         if vision_config is not None:
-            vision_config = PretrainedConfig(**vision_config)
+            vision_config = Florence2VisionConfig(**vision_config)
         self.vision_config = vision_config
         self.vocab_size = self.vocab_size