[PATCH] ppc32: dma_unmap_page() fix

From: <a.othieno@bluewin.ch> (Arthur Othieno)

Duplicate definition of dma_unmap_single() should actually be
dma_unmap_page().

(acked by Tom Rini)

include/asm-ppc/dma-mapping.h

@@ -77,7 +77,7 @@ dma_map_page(struct device *dev, struct page *page,
 }
 
 /* We do nothing. */
-#define dma_unmap_single(dev, addr, size, dir)	do { } while (0)
+#define dma_unmap_page(dev, addr, size, dir)	do { } while (0)
 
 static inline int
 dma_map_sg(struct device *dev, struct scatterlist *sg, int nents,