Use networkStatsService to get detailed network uid stats.

The native implementation of network stats no longer keep a persistent
stats since boot. Everytime networkStatsService read the detail stats,
the data will be cleaned for performance reason. For the service that
are directly calling networkStatsFactory, the results are no longer
accurate anymore. Use the binder interface provided by
networkStatsService instead to get a cumulative detailed uid stats since
device boot.

Bug: 111441138
Test: android.app.usage.cts.NetworkUsageStatsTest
Change-Id: I230c1edbf64cfeb3dbb560db368b5e420f7b79a4