Fix logging to allow real-time log monitoring

Using LOG(INFO) prevent proper tracing (e.g.: JDWP) since every
packet trigger a log. If there is another terminal tailing file
/data/adb/adb.log, each log results in packet, which result in
a log. Using VLOG and trace categories allow real-time monitoring
of everything that is not category USB.

Test: NA
Bug: NA
Change-Id: Ief45ec3a27f2cdbd99758612629084e5fb8a2cc2
6 files changed