Merge "Make VCN network policy listener oneway" am: dd2877eabe am: 6a95ca0b62 am: 00b31c836d

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1619899

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I1fce372f232d97b9df5e61c020bcc2932a77292e