iwlegacy: rename iwl-commands.h to commands.h

On the way remove also not needed iwl-fh.h include.

Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com>
diff --git a/drivers/net/wireless/iwlegacy/3945-mac.c b/drivers/net/wireless/iwlegacy/3945-mac.c
index e33ebca..ae60410 100644
--- a/drivers/net/wireless/iwlegacy/3945-mac.c
+++ b/drivers/net/wireless/iwlegacy/3945-mac.c
@@ -51,8 +51,7 @@
 
 #define DRV_NAME	"iwl3945"
 
-#include "iwl-fh.h"
-#include "iwl-commands.h"
+#include "commands.h"
 #include "iwl-sta.h"
 #include "3945.h"
 #include "iwl-core.h"