Add quantized adaptive avgpool. (#36813)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/36813
- Changes to q_avgpool to map special cases of adaptive avgpool to avgpool.
- Map special cases of adaptive avg pool to avgpool.
ghstack-source-id: 103218410
Test Plan: QuantizedOps.test_adaptive_avgpool2d
Reviewed By: z-a-f
Differential Revision: D21093837
fbshipit-source-id: c45a03b597eaa59e1057561ee4e8e116ac138f8f
