BatteryStats: NETWORK_TYPE_NR support

NETWORK_TYPE_NR was added in ag/5629764.
This cl adds this new type to the human-readable dump output and ensures
that new network types won't crash the dumpsys (instead they'll print
ERROR).

Bug: 120778989
Test: android.dumpsys.cts.BatteryStatsDumpsysTest#testBatterystatsOutput
Change-Id: I9a6b966ca961bde37eadd924ce3ba0166a943ff8