[New Model]Donut model (#23229)

Signed-off-by: 汪志鹏 <wangzhipeng628@gmail.com>

tests/models/multimodal/processing/test_common.py

@@ -160,6 +160,7 @@ def _test_processing_correctness(
 # incorrect token ids. So we need use `add_special_tokens=False` here
 # to leave bos_token to be added by the processor.
 _ADD_SPECIAL_TOKENS_OVERRIDES = {
+    "donut": False,
     "mllama": False,
     "ovis": False,
     "ovis2_5": False,
@@ -270,6 +271,7 @@ def _test_processing_correctness_one(
     "facebook/chameleon-7b",
     "CohereLabs/command-a-vision-07-2025",
     "deepseek-ai/deepseek-vl2-tiny",
+    "naver-clova-ix/donut-base-finetuned-docvqa",
     "microsoft/Florence-2-base",
     "adept/fuyu-8b",
     "google/gemma-3-4b-it",