Revert "Don't put native_support libraries into a namespace" am: 4328f7f467 am: 44caff4764 am: 26b08fc3e8

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/libs/native_bridge_support/+/11876934

Change-Id: Iaaf2376f60beadecd92aa6c98e662114f8e90d9a