Move apf test to a standalone file am: 32a2d151cc

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/3158756

Change-Id: I41f9abd7f3b3ce57f2e9a4a025e2c3f3240d99e3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>