Merge remote-tracking branch 'remotes/kraxel/tags/pull-seabios-20160704-1' into staging

seabios: update from 1.9.1 to 1.9.3

# gpg: Signature made Mon 04 Jul 2016 10:29:47 BST
# gpg:                using RSA key 0x4CB6D8EED3E87138
# 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>"
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/pull-seabios-20160704-1:
  seabios: update binaries from 1.9.1 to 1.9.3
  seabios: update 128k config
  bios: Add fast variant of SeaBIOS for use with -kernel on x86.
  seabios: update submodule from 1.9.1 to 1.9.3

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