DBR Quantization: Add support for functional conv variants
Summary: This commit expands the API coverage of functional conv
ops in DBR quantization from F.conv2d to all conv variants.
Test Plan: python test/test_quantization.py TestQuantizeDBRIndividualOps.test_conv_functional
Reviewers: vkuzo
Subscribers: vkuzo, supriyar
Tasks: https://github.com/pytorch/pytorch/issues/70620
ghstack-source-id: 2b03778c82b795214b9afa919d1e935718ef5010
Pull Request resolved: https://github.com/pytorch/pytorch/pull/71795
