Not having them before was just being conservative, and now libs at
least is needed.
Bug: 293195086
Test: m
Change-Id: Ieaa66d11fc983751fd302a21e17802748a535fa7
Also add unit tests for the rest of device_config
Bug: 283475679
Test: m nothing (soong unit tests)
Change-Id: Iee18a1f2f2cbb23e8c8d84c54e903b32be29a693