[openwrt/openwrt] wifi-scripts: fix ucode mobility_domain default value

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch main:
https://git.openwrt.org/1d0e2859c5c7cd01c1092019b89dd0f56bf3dda8

commit 1d0e2859c5c7cd01c1092019b89dd0f56bf3dda8
Author: Youfu Zhang <zhangyoufu at gmail.com>
AuthorDate: Tue Jan 27 15:11:15 2026 +0800

    wifi-scripts: fix ucode mobility_domain default value
    
    The mobility_domain value generated by ucode differed from the previous
    shell script implementation. The legacy shell script used `echo` on the
    SSID, which appended a trailing newline.
    
    To maintain roaming compatibility with pre-25.12 releases and OpenWrt
    forks in default configuration, update the ucode logic to include this
    newline character when generating the default value.
    
    Fixes: #21731
    Signed-off-by: Youfu Zhang <zhangyoufu at gmail.com>
    Link: https://github.com/openwrt/openwrt/pull/21732
    Signed-off-by: Hauke Mehrtens <hauke at hauke-m.de>
---
 .../network/config/wifi-scripts/files-ucode/usr/share/ucode/wifi/ap.uc  | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/package/network/config/wifi-scripts/files-ucode/usr/share/ucode/wifi/ap.uc b/package/network/config/wifi-scripts/files-ucode/usr/share/ucode/wifi/ap.uc
index 5f1d110ce6..4585998d30 100644
--- a/package/network/config/wifi-scripts/files-ucode/usr/share/ucode/wifi/ap.uc
+++ b/package/network/config/wifi-scripts/files-ucode/usr/share/ucode/wifi/ap.uc
@@ -363,7 +363,7 @@ function iface_roaming(config) {
 	if (!config.ieee80211r || config.wpa < 2)
 		return;
 
-	set_default(config, 'mobility_domain', substr(md5(config.ssid), 0, 4));
+	set_default(config, 'mobility_domain', substr(md5(config.ssid + '\n'), 0, 4));
 	set_default(config, 'ft_psk_generate_local', config.auth_type == 'psk');
 	set_default(config, 'ft_iface', config.network_ifname);