libertas: move to uniform lbs_/LBS_ namespace

This patch unifies the namespace of variables, functions defines
and structures. It does:

- rename libertas_XXX to lbs_XXX
- rename LIBERTAS_XXX to lbs_XXX
- rename wlan_XXX to lbs_XXX
- rename WLAN_XXX to LBS_XXX (but only those that were
  defined in libertas-local *.h files, e.g. not defines
  from net/ieee80211.h)

While passing, I fixed some checkpatch.pl errors too.

Signed-off-by: Holger Schurig <hs4233@mail.mn-solutions.de>
Acked-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/libertas/if_sdio.h

@@ -9,8 +9,8 @@
  * your option) any later version.
  */
 
-#ifndef LIBERTAS_IF_SDIO_H
-#define LIBERTAS_IF_SDIO_H
+#ifndef _LBS_IF_SDIO_H
+#define _LBS_IF_SDIO_H
 
 #define IF_SDIO_IOPORT		0x00