[coreboot] FID/VID change and display flicker

[Rudolf Marek]

Hi all,

I finally moved my desktop to the Asrock socket 939 board with 785G/SB700 + 
coreboot. So far even with 6 harddrives and 2GB RAM everything works :)

I only noticed a flicker if CPU freq/voltage changes. I briefly chekced the 
LDTSTOP settings in SB and also in HTIU in NB so far it makes sense. Is it a bug 
or feature? I admit I did not check with original BIOS.

Thanks
Rudolf