sh: Convert to asm-generic/scatterlist.h.

Signed-off-by: NPaul Mundt <lethal@linux-sh.org>

arch/sh/include/asm/scatterlist.h

 #ifndef __ASM_SH_SCATTERLIST_H
 #define __ASM_SH_SCATTERLIST_H
 
-#include <asm/types.h>
-
-struct scatterlist {
-#ifdef CONFIG_DEBUG_SG
-	unsigned long	sg_magic;
-#endif
-	unsigned long	page_link;
-	unsigned int	offset;		/* for highmem, page offset */
-	unsigned int	length;
-	dma_addr_t	dma_address;
-	unsigned int	dma_length;
-};
-
 #define ISA_DMA_THRESHOLD	PHYS_ADDR_MASK
 
-/* These macros should be used after a pci_map_sg call has been done
- * to get bus addresses of each of the SG entries and their lengths.
- * You should only work with the number of sg entries pci_map_sg
- * returns, or alternatively stop on the first sg_dma_len(sg) which
- * is 0.
- */
-#define sg_dma_address(sg)	((sg)->dma_address)
-#define sg_dma_len(sg)		((sg)->length)
+#include <asm-generic/scatterlist.h>
 
-#endif /* !(__ASM_SH_SCATTERLIST_H) */
+#endif /* __ASM_SH_SCATTERLIST_H */