Add visibility rules for packages/modules/Connectivity/Tethering am: 57a6738824 am: 26d118adc8 am: 8801009d8f am: 37764b048c

Original change: https://android-review.googlesource.com/c/platform/frameworks/libs/net/+/1478979

Change-Id: Id3b108747ebddc7f6c9404062f11796f6d48d5b8
tree: a5ed007a7dafcc7996c8d492c27502b713d3aa3a
  1. staticlibs/