more u-boot S3C2410 work

I've spent some more time on u-boot S3C2410 support. We now have working NAND flash and MMC+SD support. I'll publish patches soon, probably next week.

Apart from that, I'm extremely busy.. mostly doing real work, but also with boring gpl-violations.org stuff. Too little time to keep this blog up to date as much as before, my apologies.