update seabios to 1.12

Seabios 1.12 has been released yesterday.  Update
our snapshot builds to the final release.

git shortlog
============

Kevin O'Connor (2):
      shadow: Rework bios copy code to prevent gcc array-bounds warning
      docs: Note v1.12.0 release

Shmuel Eiderman (1):
      pvscsi: Scan all 64 possible targets

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>

roms/Makefile

@@ -39,7 +39,7 @@ powerpc_cross_prefix := $(call find-cross-prefix,powerpc)
 x86_64_cross_prefix := $(call find-cross-prefix,x86_64)
 
 # tag our seabios builds
-SEABIOS_EXTRAVERSION="-prebuilt.qemu-project.org"
+SEABIOS_EXTRAVERSION="-prebuilt.qemu.org"
 
 #
 # EfiRom utility is shipped with edk2 / tianocore, in BaseTools/