Replacing IIpClient with Manager in ethNetFactory am: cfa7a08bcf

Original change: https://android-review.googlesource.com/c/platform/frameworks/opt/net/ethernet/+/1935877

Change-Id: Ib9b36fef3188f25f29bf52b120326292a3e1c07e
tree: 086c6ae2487ac66151330989710185bb07933406
  1. service-t/
  2. tests/