ipw2100: avoid warning from pointer cast in call to IPW_DEBUG_TX

drivers/net/wireless/ipw2x00/ipw2100.c: In function 'ipw2100_tx_send_commands':
drivers/net/wireless/ipw2x00/ipw2100.c:3063: warning: cast to pointer from integer of different size

This changes the cast and the conversion to match other usage of the
same value in calls to IPW_DEBUG_TX.
Reported-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ipw2x00/ipw2100.c

@@ -3064,9 +3064,9 @@ static void ipw2100_tx_send_commands(struct ipw2100_priv *priv)
 
 		packet = list_entry(element, struct ipw2100_tx_packet, list);
 
-		IPW_DEBUG_TX("using TBD at virt=%p, phys=%p\n",
+		IPW_DEBUG_TX("using TBD at virt=%p, phys=%04X\n",
 			     &txq->drv[txq->next],
-			     (void *)(txq->nic + txq->next *
+			     (u32) (txq->nic + txq->next *
 				      sizeof(struct ipw2100_bd)));
 
 		packet->index = txq->next;