Revert^2 "gn2bp: Remove `soong_namespace`" am: 9c6801f81b am: 2842ffb9e8

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2505960

Change-Id: Iae613da778898088fd22e07c240e577f2ec648da
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>