Staging: rtl8192su: re-enable tx-stats

currently, interface statistics look like this:

wlan0     Link encap:Ethernet  HWaddr xx:xx:xx:xx:xx:xx
          inet addr:xxx.xxx.xxx.xxx  Bcast:xxx.xxx.xxx.xxx  Mask:xxx.xxx.xxx.xxx
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:435 errors:0 dropped:1 overruns:0 frame:0
          TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:456758 (446.0 Kb)  TX bytes:0 (0.0 b)

after re-enabling the tx-stats it looks like this:

wlan0     Link encap:Ethernet  HWaddr xx:xx:xx:xx:xx:xx
          inet addr:xxx.xxx.xxx.xxx  Bcast:xxx.xxx.xxx.xxx  Mask:xxx.xxx.xxx.xxx
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:1269 errors:0 dropped:1 overruns:0 frame:0
          TX packets:1049 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000
          RX bytes:1667442 (1.5 Mb)  TX bytes:82606 (80.6 Kb)
Signed-off-by: Florian Schilhabel <florian.c.schilhabel@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/staging/rtl8192su/ieee80211/ieee80211_softmac.c

@@ -2145,8 +2145,8 @@ void ieee80211_softmac_xmit(struct ieee80211_txb *txb, struct ieee80211_device *
 	ieee80211_sta_wakeup(ieee,0);
 
 	/* update the tx status */
-//	ieee->stats.tx_bytes += txb->payload_size;
-//	ieee->stats.tx_packets++;
+	ieee->stats.tx_bytes += txb->payload_size;
+	ieee->stats.tx_packets++;
 	tcb_desc = (cb_desc *)(txb->fragments[0]->cb + MAX_DEV_ADDR_SIZE);
 	if(tcb_desc->bMulticast) {
 		ieee->stats.multicast++;