[U-Boot] [PATCH] Fix checkpatch warnings about externs in *.c

[Pavel Herrmann]

On Sunday 16 September 2012 14:37:16 Marek Vasut wrote:
> Dear Pavel Herrmann,
>  ...
> Won't include/sata.h work just fine ?

I feel include/sata.h is a "consumer-facing" header, and implementation 
details such as the array used for all data-retention for command and drivers 
should not be there.

Therefore i created a new header in drivers/block for this purpose, feel free 
to oppose to its name though.

Pavel Herrmann