Merge "CTS for default background network restrictions" into main

tests/cts/hostside/Android.bp

tests/cts/hostside/app/Android.bp

...oid/cts/net/hostside/AbstractDefaultRestrictionsTest.java

...t/hostside/AbstractRestrictBackgroundNetworkTestCase.java

...com/android/cts/net/hostside/ConnOnActivityStartTest.java

...roid/cts/net/hostside/DefaultRestrictionsMeteredTest.java

...d/cts/net/hostside/DefaultRestrictionsNonMeteredTest.java

...app/src/com/android/cts/net/hostside/MyServiceClient.java

...src/com/android/cts/net/hostside/NetworkCallbackTest.java

...om/android/cts/net/hostside/NetworkPolicyManagerTest.java

tests/cts/hostside/instrumentation_arguments/Android.bp

...m/android/cts/net/arguments/InstrumentationArguments.java

.../com/android/cts/net/HostsideConnOnActivityStartTest.java

...roid/cts/net/HostsideDefaultNetworkRestrictionsTests.java

...src/com/android/cts/net/HostsideNetworkCallbackTests.java

...om/android/cts/net/HostsideNetworkPolicyManagerTests.java

...side/src/com/android/cts/net/HostsideNetworkTestCase.java