Merge "Re-Revert "Enable tethering namespace accessible in Android native level."" am: 66f740be09 am: 7f6c154a05

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/2529640

Change-Id: I846d39126ec9d84128dc1cbcb08a474360d623d3
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>