enable static cache on vision encoder decoder (#39773)

Signed-off-by: jiqing-feng <[email protected]>

Author: jiqing-feng

src/transformers/models/vision_encoder_decoder/modeling_vision_encoder_decoder.py

@@ -113,6 +113,7 @@ def __init__(
 
         self.encoder = encoder
         self.decoder = decoder
+        self._can_compile_fullgraph = decoder._can_compile_fullgraph
 
         if self.encoder.config.to_dict() != self.config.encoder.to_dict():
             logger.warning(