Merge "Add NetworkProvider to VcnManagementService" am: bdcdfa7c9c am: 4c09ba622e am: b5062e7dbd

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1486652

Change-Id: Idbefaf098711941ecc41d74a82d4a815b73cbabf