[PATCH 4/6] sparc: remove not required includes from dma-mapping.h

[David Miller]

From: Christoph Hellwig <hch at lst.de>
Date: Sat,  8 Dec 2018 09:41:13 -0800

> The only thing we need to explicitly pull in is the defines for the
> CPU type.
> 
> Signed-off-by: Christoph Hellwig <hch at lst.de>

Acked-by: David S. Miller <davem at davemloft.net>