[quant] Add op benchmark for GPU FakeQuantizePerChannel with float zero_points (#66183)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/66183
Add a GPU benchmark for fakeQuant, similar to #65241
ghstack-source-id: 139810414
Test Plan: https://pxl.cl/1QjJM
Reviewed By: b-koopman
Differential Revision: D31288158
fbshipit-source-id: 65526248b5c7b70f0bc32a86b08f50b4cbc7a83d
