This patch adds recording and replaying audio data. Is saves synchronization
information for audio out and inputs from the microphone.

v2: removed unneeded whitespace change
Signed-off-by: NPavel Dovgalyuk <pavel.dovgaluk@ispras.ru>
Message-id: 20170202055054.4848.94901.stgit@PASHA-ISP.lan02.inno

[ kraxel: add qemu/error-report.h include to fix osx build failure ]
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>