Enable test_logit FakeLowP test. (#43073)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/43073
Enable test_logit FakeLowP test.
Test Plan: test_op_nnpi_fp16.py
Reviewed By: hyuen
Differential Revision: D23141375
fbshipit-source-id: cb7e7879487e33908b14ef401e1ab05fda193d28
