Implement enableVmTethering am: 548346e09b am: 5b136675fe

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Virtualization/+/3121313

Change-Id: Ib7cbedfc83c1ef6c0e8d360c56f8849b89ddde6e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>