Update OpenBIOS images

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Merge remote-tracking branch 'remotes/mcayland/tags/qemu-openbios-signed' into staging

Update OpenBIOS images

# gpg: Signature made Tue 04 Nov 2014 00:24:41 GMT using RSA key ID AE0F321F
# gpg: Good signature from "Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>"

* remotes/mcayland/tags/qemu-openbios-signed:
  Update OpenBIOS images

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

roms/openbios

@@ -1 +1 @@
-Subproject commit 5387e764743e86c527cc7feb2823a309754f2e53
+Subproject commit b95d5338f321498a11937ce52ecce510414d4582