Merge "Replace INetworkPolicyManager to NetworkPolicyManager" am: 8918df04a5

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1534908

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Ib4faa3d8e8f437ec807c85aaff874852fd7d3cbb