Merge "Add API to get current firewall chain status" am: 6421d8456c am: ffa5463448 am: 55bb6008a8 am: fb418430c3

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2117045

Change-Id: I52ffb35b6d01d9357a73dc8bdd7ff582d6d40448
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>