libertas: cleanup host.h and hostcmd.h

Also remove some unused definitions and make tab usage consistent.

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>
diff --git a/drivers/net/wireless/libertas/cmd.h b/drivers/net/wireless/libertas/cmd.h
index 2730c6a..bf7c421 100644
--- a/drivers/net/wireless/libertas/cmd.h
+++ b/drivers/net/wireless/libertas/cmd.h
@@ -3,7 +3,7 @@
 #ifndef _LBS_CMD_H_
 #define _LBS_CMD_H_
 
-#include "hostcmd.h"
+#include "host.h"
 #include "dev.h"
 
 /* lbs_cmd() infers the size of the buffer to copy data back into, from