[openwrt/openwrt] wifi-scripts: ucode: fix airtime_mode with hostapd-mini

[LEDE Commits]

nbd pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/6a68c2fef037d13ad89398391b8d97cb6f921987

commit 6a68c2fef037d13ad89398391b8d97cb6f921987
Author: Zhi-Jun You <hujy652 at protonmail.com>
AuthorDate: Wed Oct 8 14:55:06 2025 +0800

    wifi-scripts: ucode: fix airtime_mode with hostapd-mini
    
    Currently wifi-scripts ucode appends airtime_mode to hostapd config file
    unconditionally.
    However this breaks bringing up interface with hostapd-mini
    because the mini variant doesn't support airtime policy.
    
    Fix this by changing the script to append airtime_mode only when
    airtime_mode is set to greater than zero value in /etc/config/wireless.
    
    Fixes: #20136
    Fixes: #20314
    
    Signed-off-by: Zhi-Jun You <hujy652 at protonmail.com>
---
 .../config/wifi-scripts/files-ucode/usr/share/ucode/wifi/hostapd.uc    | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/package/network/config/wifi-scripts/files-ucode/usr/share/ucode/wifi/hostapd.uc b/package/network/config/wifi-scripts/files-ucode/usr/share/ucode/wifi/hostapd.uc
index 69c853115e..840b13294d 100644
--- a/package/network/config/wifi-scripts/files-ucode/usr/share/ucode/wifi/hostapd.uc
+++ b/package/network/config/wifi-scripts/files-ucode/usr/share/ucode/wifi/hostapd.uc
@@ -483,7 +483,8 @@ function generate(config) {
 	append_vars(config, [ 'noscan' ]);
 
 	/* airtime */
-	append_vars(config, [ 'airtime_mode' ]);
+	if (config.airtime_mode)
+		append_vars(config, [ 'airtime_mode' ]);
 
 	/* assoc/thresholds */
 	append_vars(config, [ 'rssi_reject_assoc_rssi', 'rssi_ignore_probe_request', 'iface_max_num_sta', 'no_probe_resp_if_max_sta' ]);