Merge changes I852e3a53,I86755647,I0ed8b0c6

* changes:
  Remove unused INetworkManagementService from IpSecService
  Use NetdUtils instead of NetworkManagementService in Vpn
  Use NetdUtils instead of NetworkManagementService in IpSecService
tree: 1f04595a2b6ee5e64d0e9c88bbf2183edc615135
  1. core/
  2. framework/
  3. service/
  4. services/
  5. tests/
  6. OWNERS