Merge remote-tracking branch 'remotes/kraxel/tags/pull-audio-20160606-1' into staging

audio: pa volume fix, some qomifying.

# gpg: Signature made Mon 06 Jun 2016 08:01:21 BST
# gpg:                using RSA key 0x4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>"
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>"
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>"

* remotes/kraxel/tags/pull-audio-20160606-1:
  hw/audio: QOM'ify milkymist-ac97.c
  hw/audio: QOM'ify intel-hda
  hw/audio: QOM cleanup for intel-hda
  hw/audio: QOM'ify cs4231.c
  audio: pa: Set volume of recording stream instead of recording device

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>