Merge "Add PermissionUtils" am: 9404c75b43 am: 540a1a6e1e

Original change: https://android-review.googlesource.com/c/platform/frameworks/libs/net/+/1545484

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ibff76fdd53b79d112f8e789096dc2655da7072ab