Merge "Mark TestNetworkManager as module API" am: 24ea1e0377 am: ae781e1b30 am: 0397559e6f

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1547638

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I2a8aa17d6acdaed8ee7419990493b631c0eb6d1c