[ROCm] update debug flags (#46717)
Summary:
Improves support for rocgdb when setting DEBUG=1 and building for ROCm.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/46717
Reviewed By: mrshenli
Differential Revision: D25171544
Pulled By: malfet
fbshipit-source-id: b4699ba2277dcb89f07efb86f7153fae82a80dc3
