[U-Boot] [PATCH] Fix defines needed to enable command sha1sum

[Wolfgang Denk <wd@denx.de>]

Dear Alexander Holler,

In message <1295340488-10494-1-git-send-email-holler@ahsoftware.de> you wrote:
> Documented is CONFIG_CMD_SHA1, through confusion in the source
> CONFIG_CMD_SHA1 and CONFIG_CMD_SHA1SUM has to be used to enable
> sha1sum.
> 
> Fix both, the documentation and the source, so that only
> CONFIG_CMD_SHA1SUM is needed to enable the command sha1sum.
> 
> Signed-off-by: Alexander Holler <holler@ahsoftware.de>
> ---
>  README           |    2 +-
>  common/cmd_mem.c |    4 ++--
>  2 files changed, 3 insertions(+), 3 deletions(-)

Applied, thanks.

Best regards,

Wolfgang Denk

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