Merge remote-tracking branch 'remotes/dgibson/tags/ppc-for-2.11-20171108' into staging

ppc patch queue 2017-11-08

Here's the current set of accumulated ppc patches for qemu-2.11.
Since we're now in hard freeze these are all bugfixes (although some
fix a bug by way of a cleanup).

# gpg: Signature made Wed 08 Nov 2017 08:10:38 GMT
# gpg:                using RSA key 0x6C38CACA20D9B392
# gpg: Good signature from "David Gibson <david@gibson.dropbear.id.au>"
# gpg:                 aka "David Gibson (Red Hat) <dgibson@redhat.com>"
# gpg:                 aka "David Gibson (ozlabs.org) <dgibson@ozlabs.org>"
# gpg:                 aka "David Gibson (kernel.org) <dwg@kernel.org>"
# Primary key fingerprint: 75F4 6586 AE61 A66C C44E  87DC 6C38 CACA 20D9 B392

* remotes/dgibson/tags/ppc-for-2.11-20171108:
  e500: ppce500_init_mpic() return device instead of IRQ array
  hw/display/sm501: Fix comment in sm501_sysbus_class_init()
  ppc: fix setting of compat mode

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