Fix test_channel_shuffle hypothesis params (#38327)
Summary:
Otherwise, zero-point can be out of range, if selected type is torch.qint8
Pull Request resolved: https://github.com/pytorch/pytorch/pull/38327
Differential Revision: D21525214
Pulled By: malfet
fbshipit-source-id: 989f58f79830ec7f616a68f0ab00661b15030062
