Merge "Add Multiplexer logic" into udc-dev am: 8853992fb3 am: 19a0566420

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/22880446

Change-Id: Ib89c3c127f6727c5aa5d417a3bcab5d18ae87946
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>