use OpenBIOS instead of Proll on sparc (Blue Swirl)

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1960 c046a42c-6fe2-441c-8c8c-71466251a162

pc-bios/README

@@ -7,11 +7,10 @@
 - The PowerPC Open Hack'Ware Open Firmware Compatible BIOS is
   available at http://perso.magic.fr/l_indien/OpenHackWare/index.htm.
 
-- Proll is a GPL'd boot PROM for Sparc JavaStations
-  (http://people.redhat.com/zaitcev/linux/).
-  Applying proll.patch allows circumventing some bugs and enables
-  faster kernel load through a hack.
-
 - video.x is a PowerMac NDRV compatible driver for a VGA frame
   buffer. It comes from the Mac-on-Linux project
   (http://www.maconlinux.org/).
+
+- OpenBIOS (http://www.openbios.org/) is a free (GPL v2) portable
+  firmware implementation. The goal is to implement a 100% IEEE
+  1275-1994 (referred to as Open Firmware) compliant firmware.