rtlwifi: rtl8821ae: fix comparison to bool warning in hw.c

Fixes coccicheck warning:

drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c:1897:5-13: WARNING: Comparison to bool
Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Acked-by: Larry Finger <Larry.Finger@lwfinger.net>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200918102505.16036-5-zhengbin13@huawei.com

drivers/net/wireless/realtek/rtlwifi/rtl8821ae/hw.c

@@ -1894,7 +1894,7 @@ int rtl8821ae_hw_init(struct ieee80211_hw *hw)
 	}
 
 	rtstatus = _rtl8821ae_init_mac(hw);
-	if (rtstatus != true) {
+	if (!rtstatus) {
 		pr_err("Init MAC failed\n");
 		err = 1;
 		return err;