Merge remote-tracking branch 'remotes/kraxel/tags/audio-20200526-pull-request' into...

Merge remote-tracking branch 'remotes/kraxel/tags/audio-20200526-pull-request' into staging

audio: add JACK client audiodev.
audio: bugfixes and cleanups.

# gpg: Signature made Tue 26 May 2020 08:56:21 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/audio-20200526-pull-request:
  hw/mips/mips_fulong2e: Remove unused 'audio/audio.h' include
  audio: Let capture_callback handler use const buffer argument
  audio: Let audio_sample_to_uint64() use const samples argument
  audio: fix wavcapture segfault
  audio/mixeng: fix clang 10+ warning
  audio/jack: add JACK client audiodev
  hw/audio/gus: Use AUDIO_HOST_ENDIANNESS definition from 'audio/audio.h'
  es1370: check total frame count against current frame

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