sparc: Fixes the DRM layer build on sparc.

By providing an ioremap_wc().

Signed-off-by: David S. Miller <[e-mail]>

include/asm-sparc/io_32.h

···
  */
 extern void __iomem *ioremap(unsigned long offset, unsigned long size);
 #define ioremap_nocache(X,Y)	ioremap((X),(Y))
+#define ioremap_wc(X,Y)		ioremap((X),(Y))
 extern void iounmap(volatile void __iomem *addr);
 
 #define ioread8(X)			readb(X)

include/asm-sparc/io_64.h

···
 }
 
 #define ioremap_nocache(X,Y)		ioremap((X),(Y))
+#define ioremap_wc(X,Y)			ioremap((X),(Y))
 
 static inline void iounmap(volatile void __iomem *addr)
 {