rtlwifi: Update to new Realtek version - Part I

This patch incorporate the differences between the 06/20/2011 and
08/16/2011 Realtek releases of the rtlwifi driver.

The changes include:

1. Handling of IEEE80211_HW_CONNECTION_MONITOR.
2. Fix typo to get proper response to nullfunc frames.
Signed-off-by: Chaoming Li <chaoming_li@realsil.com.cn>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/rtlwifi/base.c

@@ -311,6 +311,8 @@ static void _rtl_init_mac80211(struct ieee80211_hw *hw)
 	    IEEE80211_HW_RX_INCLUDES_FCS |
 	    IEEE80211_HW_BEACON_FILTER |
 	    IEEE80211_HW_AMPDU_AGGREGATION |
+	    IEEE80211_HW_CONNECTION_MONITOR |
+	    /* IEEE80211_HW_SUPPORTS_CQM_RSSI | */
 	    IEEE80211_HW_REPORTS_TX_ACK_STATUS | 0;
 
 	/* swlps or hwlps has been set in diff chip in init_sw_vars */
@@ -850,7 +852,7 @@ void rtl_get_tcb_desc(struct ieee80211_hw *hw,
 		 *So tcb_desc->hw_rate is just used for
 		 *special data and mgt frames
 		 */
-		if (info->control.rates[0].idx == 0 &&
+		if (info->control.rates[0].idx == 0 ||
 				ieee80211_is_nullfunc(fc)) {
 			tcb_desc->use_driver_rate = true;
 			tcb_desc->ratr_index = RATR_INX_WIRELESS_MC;
@@ -1138,7 +1140,7 @@ void rtl_watchdog_wq_callback(void *data)
 	}
 
 	/*
-	 *<3> to check if traffic busy, if
+	 *<2> to check if traffic busy, if
 	 * busytraffic we don't change channel
 	 */
 	if (mac->link_state >= MAC80211_LINKED) {