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.c b/drivers/net/wireless/iwlegacy/3945.c
index 83fe531..ff8818b 100644
--- a/drivers/net/wireless/iwlegacy/3945.c
+++ b/drivers/net/wireless/iwlegacy/3945.c
@@ -39,8 +39,7 @@
 #include <asm/unaligned.h>
 #include <net/mac80211.h>
 
-#include "iwl-fh.h"
-#include "iwl-commands.h"
+#include "commands.h"
 #include "iwl-sta.h"
 #include "iwl-eeprom.h"
 #include "iwl-core.h"