Statsd atom: Add WifiLock type

Track the Wifi Lock type.
WifiLocks are undergoing a large change. New types have been added,
which will have actual effects on the device. Statsd should track this.

Bug: 68943452
Test: cts-tradefed run cts-dev -m CtsStatsdHostTestCases -t android.cts.statsd.atom.UidAtomTests#testWifiLock
Change-Id: I70a0d65fd48db858564ba705e82dc625ebdb3f0f