Update for PPChameleon board:
- support for SysClk @ 25MHz
- support for Silicon Motion SM712 VGA controller
- some clean ups

* Configure PPChameleon board to use JFFS2 NAND support.

* Added support for JFFS2 filesystem (read-only) on top of NAND flash

  Add support for S3C44B0 processor and DAVE B2 board

* Patch by Steven Scholz, 20 Feb 2004:
  - Add support for MII commands on AT91RM9200 boards
  - some cleanup in AT91RM9200 ethernet code

  - Added Motorola CPU 8540/8560 support (cpu/85xx)
  - Added Motorola MPC8540ADS board support (board/mpc8540ads)
  - Added Motorola MPC8560ADS board support (board/mpc8560ads)

* Minor code cleanup

* Add support for P3G4 board

* Fix problem with MGT5100 FEC driver: add "early" MAC address
  initialization

  - remove trailing white space, trailing empty lines, C++ comments, etc.
  - split cmd_boot.c (separate cmd_bdinfo.c and cmd_load.c)

* Patches by Kenneth Johansson, 25 Jun 2003:
  - major rework of command structure
    (work done mostly by Michal Cendrowski and Joakim Kristiansen)