Add visibility to net-utils-framework-srcs

Allow framework-connectivity to depend on net-utils-framework-srcs, and
add @hide annotations to classes that were missing it.

This allows depending on less classes than net-utils-device-common, and
avoids transitive dependency on androidx.annotations used by
net-utils-device-common (which itself depends on the public SDK).

Bug: 183600168
Test: m
Merged-In: I89a18bb46311800fd6807dad5785f12648f165d9
Change-Id: I4c37d78198682366f56cde1b2707b0323f2f9e40
5 files changed
tree: e183d89beb0502de3a2144de585295833ae506dd
  1. staticlibs/