FRV: Provide ioremap_wc() for FRV

Provide ioremap_wc() for FRV.
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

include/asm-frv/io.h

@@ -271,6 +271,8 @@ static inline void __iomem *ioremap_fullcache(unsigned long physaddr, unsigned l
 	return __ioremap(physaddr, size, IOMAP_FULL_CACHING);
 }
 
+#define ioremap_wc ioremap_nocache
+
 extern void iounmap(void volatile __iomem *addr);
 
 static inline void __iomem *ioport_map(unsigned long port, unsigned int nr)