Add TCP info into DataStallEvent

Bug: 150182763
Test: Test with ./out/host/linux-x86/bin/statsd_testdrive 121
      to ensure log properly
Merged-In: I7509147793c202954c0a3c2c74aea9de4264ba37
Change-Id: I7509147793c202954c0a3c2c74aea9de4264ba37
1 file changed