fix misc tests related to quantization

Summary: Pull Request resolved: https://github.com/facebookresearch/d2go/pull/184

Reviewed By: zhanghang1989

Differential Revision: D34529248

fbshipit-source-id: f77882dae7de336da77ac9bb7c35cfc1e8d541af

d2go/runner/callbacks/quantization.py

@@ -213,6 +213,7 @@ class QuantizationMixin(ABC):
                 rsetattr(root, name, convert_fx(prepared))
         for attr, value in old_attrs.items():
             rsetattr(converted, attr, value)
+            rsetattr(root, attr, value)
         return converted