Blackfin: convert simple headers to asm-generic

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
diff --git a/arch/blackfin/include/asm/errno.h b/arch/blackfin/include/asm/errno.h
index 164e4f3..4c82b50 100644
--- a/arch/blackfin/include/asm/errno.h
+++ b/arch/blackfin/include/asm/errno.h
@@ -1,6 +1 @@
-#ifndef _BFIN_ERRNO_H
-#define _BFIN_ERRNO_H
-
-#include<asm-generic/errno.h>
-
-#endif				/* _BFIN_ERRNO_H */
+#include <asm-generic/errno.h>