Audio HAL VTS: Log test unexpected behaviour

Some test output infos that are useful to understand how they run.
Unfortunately the xml report does not seem to be saved by VTS tradefed.
Thus output them in logcat.

Test: vts-tradefed run vts --module VtsHalAudioV2_0Target
Test: call/play music/record/video...
Bug: 36311550
Change-Id: I9a2cc10160c3b1c8f81db0464efbc6b26600cadc
Signed-off-by: Kevin Rocard <krocard@google.com>