Blackfin arch: stub out pgprot_noncached() like other people seem to do on nommu

Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>

diff --git a/arch/blackfin/include/asm/pgtable.h b/arch/blackfin/include/asm/pgtable.h
index f11684e..783c8f7 100644
--- a/arch/blackfin/include/asm/pgtable.h
+++ b/arch/blackfin/include/asm/pgtable.h
@@ -29,6 +29,7 @@
 #define PAGE_COPY		__pgprot(0)	/* these mean nothing to NO_MM */
 #define PAGE_READONLY		__pgprot(0)	/* these mean nothing to NO_MM */
 #define PAGE_KERNEL		__pgprot(0)	/* these mean nothing to NO_MM */
+#define pgprot_noncached(prot)	(prot)
 
 extern void paging_init(void);