seabios: update to master snapshot

seabios master branch got a few bugfixes, so update
 to a newer snapshot to pick them up for 5.1-rc3.
 -----BEGIN PGP SIGNATURE-----
 Version: GnuPG v2.0.22 (GNU/Linux)
 
 iQIcBAABCgAGBQJfJ5+BAAoJEEy22O7T6HE4Sr4QAKp5ntfbpsFfVj4HfGm1443Q
 4kxCmIiGH+vSbTQqSziannwvdRgbxzZemnc2GTWhOFixp+jP7eY2U3/5mHG4Gx4O
 EOHCjTCfhCdEn3Enn9tXKL10GTY28BrYbPdbfPOqcyV5G3fIpQ/4nmodIwn7uOfB
 wh1zIWeYQKKXy+w7plzM4GKBhRSvmBNfPbZRMSe125ojoPF3lEnLlOqQeQTqbNaK
 PKKenlbgJpV+fATPwCSO6nGiAfO69kKAu6UHR//4Dm867vT9npIkIwyiS5+Ietzw
 0n6xZh8SNncT0++wKSnVb4z5ITETm8RrLvn/b8CkvnH/rQXBxzPZ/MrviFdwgrbt
 GV4GrrCLE+ApRDOurZsObbHX6Us/5bY1t2trPfXdwDlPASbearvkwBgqZiCIiz0N
 gTsEPhiNLPHNjpVKb0snONNyyUvO/nhELoVQXKcJDxQ+uFxUutd7eefcz5ET4ETj
 I9tZxIHQIt7MyGbaIc2gFl83y9wOJTsMhGsVmLMGgbz/qnE0rQj2ZndBnoN+7AiL
 T/Nh+QWKEI+DUv5htm6GaLidAvIrfj2Y1X33nLRzjPlfK076vSA86KFvN7TA+rBO
 No15Vw1D8/Rwz18QLXoP4D1r0fDYlF8rI0+CXFrEpe/1u1QS9kteruVRZnaW46Zb
 gyv5UgLJGj1DnmoO21At
 =2oht
 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/kraxel/tags/seabios-20200803-pull-request' into staging

seabios: update to master snapshot

seabios master branch got a few bugfixes, so update
to a newer snapshot to pick them up for 5.1-rc3.

# gpg: Signature made Mon 03 Aug 2020 06:24:17 BST
# gpg:                using RSA key 4CB6D8EED3E87138
# gpg: Good signature from "Gerd Hoffmann (work) <kraxel@redhat.com>" [full]
# gpg:                 aka "Gerd Hoffmann <gerd@kraxel.org>" [full]
# gpg:                 aka "Gerd Hoffmann (private) <kraxel@gmail.com>" [full]
# Primary key fingerprint: A032 8CFF B93A 17A7 9901  FE7D 4CB6 D8EE D3E8 7138

* remotes/kraxel/tags/seabios-20200803-pull-request:
  seabios: update to master snapshot

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

roms/seabios

@@ -1 +1 @@
-Subproject commit 88ab0c15525ced2eefe39220742efe4769089ad8
+Subproject commit d9c812dda519a1a73e8370e1b81ddf46eb22ed16