Merge changes from topic "sp06-offloadcontroller"

data/etc/privapp-permissions-platform.xml

packages/Tethering/AndroidManifest.xml

packages/Tethering/src/android/net/ip/IpServer.java

...roid/server/connectivity/tethering/OffloadController.java

...rver/connectivity/tethering/OffloadHardwareInterface.java

.../com/android/server/connectivity/tethering/Tethering.java

.../server/connectivity/tethering/TetheringDependencies.java

...droid/server/connectivity/tethering/TetheringService.java

...Tethering/tests/unit/src/android/net/ip/IpServerTest.java

.../server/connectivity/tethering/OffloadControllerTest.java

.../android/server/connectivity/tethering/TetheringTest.java

...a/com/android/server/net/NetworkPolicyManagerService.java

...m/android/server/net/NetworkPolicyManagerServiceTest.java