Move config_apf* resources to NetworkStack

The resources are only read by NetworkStack through their respective
ApfCapabilities SystemApi methods.
As the resources are being migrated out of frameworks/base resources
anyway, move them directly to NetworkStack instead of moving them to
ServiceConnectivityResources.
On S+ devices, the resource from NetworkStack is used. On Q and R, the
ApfCapabilities APIs are still used, as they may have been customized to
return different values by OEMs (typically by updating the underlying
framework resources).

BYPASS_INCLUSIVE_LANGUAGE_REASON=Referencing existing symbols
Bug: 185850634
Test: Boot, verify APF config

Change-Id: I087287b6cedbf931c02d5696ad9bcbafa40fc660