Enable CloseFrozenAppSockets feature on V+

On V, this feature is enabled on all devices.
On U, this feature is enabled if the flag is enabled.

Test: TH
Change-Id: I025b9a8098a0896be51cf06c5b8262243ba439b7

service/src/com/android/server/ConnectivityService.java

@@ -1955,8 +1955,8 @@ public class ConnectivityService extends IConnectivityManager.Stub
         mMulticastRoutingCoordinatorService =
                 mDeps.makeMulticastRoutingCoordinatorService(mHandler);
-        mDestroyFrozenSockets = mDeps.isAtLeastU()
-                && mDeps.isFeatureEnabled(context, KEY_DESTROY_FROZEN_SOCKETS_VERSION);
+        mDestroyFrozenSockets = mDeps.isAtLeastV() || (mDeps.isAtLeastU()
+                && mDeps.isFeatureEnabled(context, KEY_DESTROY_FROZEN_SOCKETS_VERSION));
         mDelayDestroyFrozenSockets = mDeps.isAtLeastU()
                 && mDeps.isFeatureEnabled(context, DELAY_DESTROY_FROZEN_SOCKETS_VERSION);
         mAllowSysUiConnectivityReports = mDeps.isFeatureNotChickenedOut(