8xx, kup4k/kup4x: configuration changes, code cleanup

- nfs-options removed
- hda->sda changed
- mtd parts added
- loadaddress changed
- cmd-line length increased
- lcd stuff removed
- code cleanup (use I/O accessors etc.)

Signed-off-by: Klaus Heydeck <heydeck@kieback-peter.de>
8 files changed