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

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

Change-Id: I0572cf0b1ceb56ef1a2186d73c17ecfac0e9b3ef
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>