wlcore: fix pointer print out in wl1271_acx_set_rx_filter()

The debug print in wl1271_acx_set_rx_filter() was causing the
following warning:

  CC      drivers/net/wireless/ti/wlcore/acx.o
drivers/net/wireless/ti/wlcore/acx.c: In function ‘wl1271_acx_set_rx_filter’:
drivers/net/wireless/ti/wlcore/acx.c:1759:2: warning: cast from pointer to integer of different size

Instead of casting the pointer to an integer, use %p to print it our
instead.

Reported-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ti/wlcore/acx.c

@@ -1756,8 +1756,9 @@ int wl1271_acx_set_rx_filter(struct wl1271 *wl, u8 index, bool enable,
 	WARN_ON(enable && !filter);
 	WARN_ON(index >= WL1271_MAX_RX_FILTERS);
 
-	wl1271_debug(DEBUG_ACX, "acx set rx filter idx: %d enable: %d"
-		     "filter: 0x%x", index, enable, (unsigned int)filter);
+	wl1271_debug(DEBUG_ACX,
+		     "acx set rx filter idx: %d enable: %d filter: %p",
+		     index, enable, filter);
 
 	if (enable) {
 		fields_size = wl1271_rx_filter_get_fields_size(filter);