Override settingslib_config_headlineFontFamily

The change overrides the string value
settingslib_config_headlineFontFamily used by SettingsLib to avoid
referencing private resources from the module.

Bug: 190964071
Bug: 196106314
Test: Manual to confirm no crash
Change-Id: Ida53b580c98614b5904c2d79a15069fa16750cd6
1 file changed