Add missed "optional_uses_libs" to avoid testing failed

After adding the missed "optional_uses_libs" I can run the SettingsRoboTests test locally (screenshot: https://screenshot.googleplex.com/3nLrCwX4bLHGxvP)

Bug: 203408618
Test: make SettingsRoboTests
Change-Id: I1bfdb2204fe89c8d0dbcfb347d10fa74853051e9
1 file changed