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/drivers/net/wireless/Kconfig b/drivers/net/wireless/Kconfig
index c98fc62..2c08c0a 100644
--- a/drivers/net/wireless/Kconfig
+++ b/drivers/net/wireless/Kconfig
@@ -68,7 +68,7 @@
 	  <http://www.tldp.org/docs.html#howto>. Some more specific
 	  information is contained in
 	  <file:Documentation/networking/wavelan.txt> and in the source code
-	  <file:drivers/net/wavelan.p.h>.
+	  <file:drivers/net/wireless/wavelan.p.h>.
 
 	  You will also need the wireless tools package available from
 	  <http://www.hpl.hp.com/personal/Jean_Tourrilhes/Linux/Tools.html>.