Add the visibility of net-utils-framework-common for cts-net am: 652aa2918b am: 3517c6d70a am: 3c1c253e01

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

Change-Id: Ia7f81f3c5b9827d7dfda7ce373b826a20495b28f
tree: 6eaebe656c7c7a26f3d1b98f7bfeb1f607e46839
  1. staticlibs/