Update device config to sys prop sync

1, for legacy native namespaces listed, push flags to both sys prop slots:
persist.device_config.<namespace>.<flag>
persist.device_config.aconfig_flags.<namespace>.<flag>

2, for trunk stable native namespaces listed, push flags to
persist.device_config.aconfig_flags.<namespace>.<flag>

Bug: b/295379636
Change-Id: I059cf88bf2ed9a79f6a0ed9992c80c5158415f24
2 files changed