Merge "Move IpUtils to frameworks/libs/net" am: 4cb4ef8333 am: 9623f122df

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1440234

Change-Id: I03872655d1ef3a7bb436666196ed67bd61601f65
tree: 280b8aa2f837e5f17c5b62b98a35ee70f5b5a713
  1. Tethering/