Update Sparc32 OpenBIOS image to SVN revision 149. Changes:

Update Sparc32 OpenBIOS image to SVN revision 149. Changes:
r145: Fix power-management location for SS-10
r146: Fix overallocation
r147: NetBSD and OpenBSD fixes:
 - Correct timer and interrupt controller mappings
 - Add ESP clock frequency to avoid division by zero
 - CS4231 exists only in SS5
 - Disable BPP for now, it's not emulated by Qemu anyway
With these fixes, one NetBSD kernel even got to root device prompt on SS5.
r148: Update vsprintf.c from Linux to get 64-bit output
r149: Use full 36-bit physical address space on SS10

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2831 c046a42c-6fe2-441c-8c8c-71466251a162