Merge "Expose VpnTransportInfo as module-lib API." am: 4a7e41a6e6 am: 094211dec4 am: e510c506fe

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1585572

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: I71abed2260e6b57a96132c1e978f499809ce98cc