Merge "Add FlaggedAPI annotation to NSD offload APIs" into main am: 53f0825b5d

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2849534

Change-Id: I4f11796d4495266ccb5b5ec1a40d6643873268c6
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>