Correct ffs/fls regression for PowerPC etc

Commits

  02f99901ed1c9d828e3ea117f94ce2264bf8389e
  52d61227b66d4099b39c8309ab37cb67ee09a405

introduced a regression where platform-specific ffs/fls implementations
were defined away. This patch corrects that by using PLATFORM_xxx
instead of the name itself.

Signed-off-by: Simon Kagstrom <simon.kagstrom@netinsight.net>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Acked-by: Stefan Roese <sr@denx.de>
diff --git a/include/asm-sh/bitops.h b/include/asm-sh/bitops.h
index 95167bd..c57d628 100644
--- a/include/asm-sh/bitops.h
+++ b/include/asm-sh/bitops.h
@@ -146,7 +146,7 @@
 	}
 	return r;
 }
-#define ffs
+#define PLATFORM_FFS
 
 #endif /* __KERNEL__ */