wifi: rtw89: set WIPHY_FLAG_DISABLE_WEXT before MLO

We will support MLO on 802.11be chip, e.g. RTL8922A, in the future. At that
time being, we will set WIPHY_FLAG_SUPPORTS_MLO according to chip info and
FW features at runtime. But, with WIPHY_FLAG_SUPPORTS_MLO flag, cfg80211
will disable WEXT. In case inconsistent user experience, if 802.11be chip,
we disable WEXT uniformly from now on.
Signed-off-by: Zong-Zhe Yang <kevin_yang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Link: https://msgid.link/20240417090050.42607-1-pkshih@realtek.com

drivers/net/wireless/realtek/rtw89/core.c

@@ -4512,6 +4512,9 @@ static int rtw89_core_register_hw(struct rtw89_dev *rtwdev)
 	if (!chip->support_rnr)
 		hw->wiphy->flags |= WIPHY_FLAG_SPLIT_SCAN_6GHZ;
 
+	if (chip->chip_gen == RTW89_CHIP_BE)
+		hw->wiphy->flags |= WIPHY_FLAG_DISABLE_WEXT;
+
 	hw->wiphy->features |= NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
 
 	hw->wiphy->max_scan_ssids = RTW89_SCANOFLD_MAX_SSID;