rtlwifi: rtl8188ee: fix comparison pointer to bool warning in phy.c

Fixes coccicheck warning:

drivers/net/wireless/realtek/rtlwifi/rtl8188ee/phy.c:1584:14-18: WARNING: Comparison to bool
Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200910135917.143723-2-zhengbin13@huawei.com

drivers/net/wireless/realtek/rtlwifi/rtl8188ee/phy.c

@@ -1581,7 +1581,7 @@ static void _rtl88e_phy_path_adda_on(struct ieee80211_hw *hw,
 	u32 i;
 
 	pathon = is_patha_on ? 0x04db25a4 : 0x0b1b25a4;
-	if (false == is2t) {
+	if (!is2t) {
 		pathon = 0x0bdb25a0;
 		rtl_set_bbreg(hw, addareg[0], MASKDWORD, 0x0b1b25a0);
 	} else {