[Fix] fix rknn quantization pipeline (#1636)

* fix rknn quantization pipeline

* resolve comments

mmdeploy/backend/rknn/backend_manager.py

@@ -50,14 +50,9 @@ def is_available(cls, with_custom_ops: bool = False) -> bool:
         """
         import importlib
         try:
-            ret = importlib.util.find_spec('rknn-toolkit2') is not None
+            ret = importlib.util.find_spec('rknn') is not None
         except Exception:
             pass
-        if ret is None:
-            try:
-                ret = importlib.util.find_spec('rknn-toolkit') is not None
-            except Exception:
-                pass
         return ret
 
     @classmethod

tools/deploy.py

@@ -218,7 +218,8 @@ def main():
         dataset_file = tempfile.NamedTemporaryFile(suffix='.txt').name
         with open(dataset_file, 'w') as f:
             f.writelines([osp.abspath(args.img)])
-        quantization_cfg.setdefault('dataset', dataset_file)
+        if quantization_cfg.get('dataset', None) is None:
+            quantization_cfg['dataset'] = dataset_file
     if backend == Backend.ASCEND:
         # TODO: Add this to backend manager in the future
         if args.dump_info: