netd.c - reduce privs on maps am: 30e5476746 am: 5e8d2f3de9

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/18992476

Change-Id: I45b7218570468fe1488b95fcc1d104933d5714b5
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>