Use reduced precision switch in `test_addmm_baddbmm_overflow` (#68399)
Summary:
https://github.com/pytorch/pytorch/issues/68125
Checking to see if actually using the switch fixes the test...
CC mruberry ngimel ptrblck
Pull Request resolved: https://github.com/pytorch/pytorch/pull/68399
Reviewed By: VitalyFedyunin
Differential Revision: D32466974
Pulled By: ngimel
fbshipit-source-id: aa8643ed913b344977fd103974625c527d20dbb8
