rtlwifi: use alloc_workqueue

create_workqueue is deprecated.  The workqueue usage does not seem to
demand any special treatment, so do not set any flags either.
Signed-off-by: NJohn W. Linville <linville@tuxdriver.com>
Tested-by: NLarry Finger <Larry.Finger@lwfinger.net>
Acked-by: NTejun Heo <tj@kernel.org>

drivers/net/wireless/rtlwifi/base.c

@@ -225,7 +225,7 @@ static void _rtl_init_deferred_work(struct ieee80211_hw *hw)
 
 	/* <2> work queue */
 	rtlpriv->works.hw = hw;
-	rtlpriv->works.rtl_wq = create_workqueue(rtlpriv->cfg->name);
+	rtlpriv->works.rtl_wq = alloc_workqueue(rtlpriv->cfg->name, 0, 0);
 	INIT_DELAYED_WORK(&rtlpriv->works.watchdog_wq,
 			  (void *)rtl_watchdog_wq_callback);
 	INIT_DELAYED_WORK(&rtlpriv->works.ips_nic_off_wq,