libertas: harmonize cmd.h

* move declarations for functions of cmd.c/cmdresp.c into cmd.h
* move declarations from cmd.h that are in main.c to decl.h
* group command functions

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/cmdresp.c b/drivers/net/wireless/libertas/cmdresp.c
index 9ee8bd1..a45061b 100644
--- a/drivers/net/wireless/libertas/cmdresp.c
+++ b/drivers/net/wireless/libertas/cmdresp.c
@@ -11,6 +11,7 @@
 
 #include "host.h"
 #include "decl.h"
+#include "cmd.h"
 #include "defs.h"
 #include "dev.h"
 #include "assoc.h"