Fix native stats_event logging

pass the byte array pointer; not the reference to the pointer.

Also turn on new socket protocol.

Bug: 148909969
Bug: 143979391
Test: m
Test: fastboot flashall
Test: atest android.cts.statsd.atom.UidAtomTests#testLmkKillOccurred
Test: atest LibStatsPullTests
Test: atest GtsStatsdHostTestCases
Change-Id: If7abae5cadb036555540d1b9b5e7f2cabe99beb8