This patch updates the Acadia (405EZ) support for the new 1.1 board
revision. It also adds support for NAND FLASH via the 4xx NDFC.

Please note that the jumper J7 must be in position 2-3 for this
NAND support. Position 1-2 is for NAND booting only. NAND booting
support will follow later.
Signed-off-by: NStefan Roese <sr@denx.de>

This patch cleans up all the open issue of the preliminary
Acadia support.
Signed-off-by: NStefan Roese <sr@denx.de>

Signed-off-by: NStefan Roese <sr@denx.de>

This patch adds support for the new AMCC Acadia eval board.

Please note that this Acadia/405EZ support is still in a beta stage.
Still lot's of cleanup needed but we need a preliminary release now.
Signed-off-by: NStefan Roese <sr@denx.de>