[Misc][V1] Avoid using envs.VLLM_USE_V1 in mm processing (#14256)

Signed-off-by: Roger Wang <ywang@roblox.com>

vllm/model_executor/models/prithvi_geospatial_mae.py

@@ -93,6 +93,7 @@ class PrithviGeoSpatialMAEMultiModalProcessor(BaseMultiModalProcessor):
         prompt: Union[str, list[int]],
         mm_data: MultiModalDataDict,
         hf_processor_mm_kwargs: Mapping[str, object],
+        return_mm_hashes: bool = False,
     ) -> MultiModalInputs:
         mm_kwargs = {}