Merge remote-tracking branch 'remotes/ehabkost/tags/numa-pull-request' into staging

NUMA fix for -rc2

# gpg: Signature made Mon 23 Nov 2015 12:45:34 GMT using RSA key ID 984DC5A6
# gpg: Good signature from "Eduardo Habkost <ehabkost@redhat.com>"

* remotes/ehabkost/tags/numa-pull-request:
  hostmem: Ignore ENOSYS while setting MPOL_DEFAULT

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