Fix file references in documentation and Kconfig

Fix typo in arch/powerpc/boot/flatdevtree_env.h.
There is no Documentation/networking/ixgbe.txt.

README.cycladesZ is now in Documentation/.
wavelan.p.h is now in drivers/net/wireless/.
HFS.txt is now Documentation/filesystems/hfs.txt.
OSS-files are now in sound/oss/.

Signed-off-by: Johann Felix Soden <johfel@users.sourceforge.net>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/arch/powerpc/boot/flatdevtree_env.h b/arch/powerpc/boot/flatdevtree_env.h
index ad0420d..66e0ebb 100644
--- a/arch/powerpc/boot/flatdevtree_env.h
+++ b/arch/powerpc/boot/flatdevtree_env.h
@@ -2,7 +2,7 @@
  * This file adds the header file glue so that the shared files
  * flatdevicetree.[ch] can compile and work in the powerpc bootwrapper.
  *
- * strncmp & strchr copied from <file:lib/strings.c>
+ * strncmp & strchr copied from <file:lib/string.c>
  * Copyright (C) 1991, 1992  Linus Torvalds
  *
  * Maintained by: Mark A. Greer <mgreer@mvista.com>