Merge remote-tracking branch 'remotes/otubo/tags/pull-seccomp-20150105' into staging

seccomp branch queue

# gpg: Signature made Mon 05 Jan 2015 17:17:01 GMT using RSA key ID 12F8BD2F
# gpg: Can't check signature: public key not found

* remotes/otubo/tags/pull-seccomp-20150105:
  seccomp: add mbind() to the syscall whitelist
  seccomp: typo in configure error message

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