Merge remote-tracking branch 'remotes/kraxel/tags/pull-audio-20150122-1' into staging

Merge remote-tracking branch 'remotes/kraxel/tags/pull-audio-20150122-1' into staging

b16: fix interrupt acknowledgement

# gpg: Signature made Thu 22 Jan 2015 11:38:29 GMT using RSA key ID D3E87138
# 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-20150122-1:
  sb16: fix interrupt acknowledgement

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