Merge remote-tracking branch 'remotes/mcayland/tags/qemu-openbios-20191028' into staging

qemu-openbios queue

# gpg: Signature made Mon 28 Oct 2019 19:03:44 GMT
# gpg:                using RSA key CC621AB98E82200D915CC9C45BC2C56FAE0F321F
# gpg:                issuer "mark.cave-ayland@ilande.co.uk"
# gpg: Good signature from "Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>" [full]
# Primary key fingerprint: CC62 1AB9 8E82 200D 915C  C9C4 5BC2 C56F AE0F 321F

* remotes/mcayland/tags/qemu-openbios-20191028:
  Update OpenBIOS images to 7e5b89e4 built from submodule.

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

roms/openbios

@@ -1 +1 @@
-Subproject commit f28e16f9aab36f723df525e8a2a1a798b18e19bd
+Subproject commit 7e5b89e4295063d8eba55b9c8ce8bc681c2d129a