qactivation_benchmarks: small bug fix (#35731)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/35731
Changes relu and relu6 to point to the functional implementations here.
The previous behavior tested the time to create the module, but didn't actually run the
function (I noticed this when adding the new input sizes and seeing
the measured time not change).
Test Plan:
run the benchmark, the time now changes as expected with input size for
these.
Imported from OSS
Differential Revision: D20875542
fbshipit-source-id: 3a6278a7a861437d613c1e30698a58175a8e8555
