[U-Boot] [2/5]devkit8000 nand_spl: omap3 support nand_spl boot

[Simon Schwarz]

Dear Andreas,

thanks for the input!

> well, deactivating caches make the process much slower. I recommend
> don't disabeling it!
Sure, this was for debugging puposes - just forgot to undo. will change

> BTW, this patch also add preloader_console_init() to s_init() .. please
> honor this in commit message (or split off in two patches)
will do.

Regards
Simon