ARM: Fix at91rm9200dk base address

Somewhere during development of U-Boot-1.1.3 CONFIG_BOOTBINFUNC was
renamed into CONFIG_INIT_CRITICAL which was 04 Apr 2005 replaced
with CONFIG_SKIP_LOWLEVEL_INIT and CONFIG_SKIP_RELOCATE_UBOOT.
However CONFIG_SKIP_LOWLEVEL_INIT has oposite meaning to
CONFIG_BOOTBINFUNC, so fix configuration to reflect this fact.
I'm sending this patch 4th (!) time in hope it produces at least some
reaction.

Signed-off-by: Ladislav Michl <ladis@linux-mips.org>

Fix at91rm9200dk base and environment address.