Update ConnectivityService's check for administrator UIDs to use
ArrayUtils to check for UID inclusion. Update the NetworkCapabilities
annotation on the administrator UIDs field to clarify that it is
NonNull.
Bug: 147903575
Test: atest FrameworksNetTests
Change-Id: Id630fe9d76aacdaf038fdaa5360f0327520ee0c3
Merged-In: Id630fe9d76aacdaf038fdaa5360f0327520ee0c3
(cherry picked from commit 898496365aa1f3601cdbb305004ad0de11ff6bfc)
9f8773c32e