Add convolution_backward to aten_interned_strings.h (#70112)
Summary: Pull Request resolved: https://github.com/pytorch/pytorch/pull/70112
Test Plan: Imported from OSS
Reviewed By: albanD
Differential Revision: D33188664
Pulled By: jbschlosser
fbshipit-source-id: 20e565c2fef4c1c3c087ba9b36320b7e539e467e
