Merge "Allow tethering pick prefix from all of private address range" am: 8c9a2645d8 am: 4388f63021 am: e2a905116c am: 6f601a0374

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1436852

Change-Id: I849f7d336fd4bc7d39d8b268620bcb25dbd26667
tree: aab6331fe0828a81bd839a1df290c5a51db1ab9c
  1. Tethering/