Fix compilation of Devkit8000 after introduction of
ARM relocation support.

Signed-off-by: Thomas Weber <weber@corscience.de>

Adapt to TEXT_BASE => CONFIG_SYS_TEXT_BASE rename.
Signed-off-by: Wolfgang Denk <wd@denx.de>

The change is currently needed to be able to remove the board
configuration scripting from the top level Makefile and replace it by
a simple, table driven script.

Moving this configuration setting into the "CONFIG_*" name space is
also desirable because it is needed if we ever should move forward to
a Kconfig driven configuration system.

Signed-off-by: Wolfgang Denk <wd@denx.de>

This patch adds support for the DevKit8000 board.

Signed-off-by: Frederik Kriewitz <frederik@kriewitz.eu>