Add the visibility of net-utils-framework-common for cts-net am: 652aa2918b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/libs/net/+/11941178

Change-Id: I448dcbf1a3cfe3053fc237acfb7e78892bb3cddc
tree: 6eaebe656c7c7a26f3d1b98f7bfeb1f607e46839
  1. staticlibs/