Update UidCounterSetMap directly from NetworkStatsService

Currently NetworkStatsService call
NetworkManagementSocketTagger#setKernelCounterSet which would call into
netd to update UidCounterSet bpf map. This change let
NetworkStatsService get UidCounterSetMap and update it directly. After
this change, NetworkManagementSocketTagger#setKernelCounterSet could be
removed because NetworkStatsService is the only caller.

Test: dump UidCounterSetMap to ensure it still have value after removing
netd code.

Change-Id: I7ae14106ded4fa55122e93e76c3057052a2fa33e