iwl3945: rearrange 3945 tfd

This patch moves 3945 TFD structures to iwl-3945-fh.h. It renames them
similarly to AGN naming. This patch also eliminates iwl3945_tx_info and
fixes endianity issue in iwl3945_tx_skb and iwl3945_enqueue_hcmd caused
by ugly casting.

Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/drivers/net/wireless/iwlwifi/iwl-3945.h b/drivers/net/wireless/iwlwifi/iwl-3945.h
index aff6a3a..716c4b4 100644
--- a/drivers/net/wireless/iwlwifi/iwl-3945.h
+++ b/drivers/net/wireless/iwlwifi/iwl-3945.h
@@ -45,6 +45,7 @@
 
 #include "iwl-csr.h"
 #include "iwl-prph.h"
+#include "iwl-fh.h"
 #include "iwl-3945-hw.h"
 #include "iwl-debug.h"
 #include "iwl-power.h"
@@ -107,13 +108,6 @@
 
 int iwl3945_x2_queue_used(const struct iwl_queue *q, int i);
 
-#define MAX_NUM_OF_TBS          (20)
-
-/* One for each TFD */
-struct iwl3945_tx_info {
-	struct sk_buff *skb[MAX_NUM_OF_TBS];
-};
-
 #include "iwl-agn-rs.h"
 
 #define IWL_TX_FIFO_AC0	0