[U-Boot] [PATCH] at91rm9200ek: add configure target for RAM boot

[Reinhard Meyer]

Dear Andreas Bießmann,
> This patch also removes now unnecessary config.mk in board directory and make
> usage of new features in boards.cfg.
> 
> Signed-off-by: Andreas Bießmann <andreas.devel at googlemail.com>
> ---
>  board/atmel/at91rm9200ek/config.mk |    2 --
>  boards.cfg                         |    3 ++-
>  2 files changed, 2 insertions(+), 3 deletions(-)
>  delete mode 100644 board/atmel/at91rm9200ek/config.mk
V4 of this patch applied to u-boot-atmel/at91-next

Thanks,
Reinhard