istoreos: set default zonename

package/istoreos-files/files/etc/uci-defaults/09_istoreos

@@ -5,6 +5,11 @@ if [ ! -f /etc/config/fstab ]; then
     /usr/libexec/blockmount.sh detect 2>/dev/null
 fi
 
+uci -q batch <<-EOF >/dev/null
+    set system.@system[-1].zonename='Asia/Shanghai'
+    commit system
+EOF
+
 uci set dockerd.globals.data_root=/overlay/upper/opt/docker
 
 if grep -qFw nas /proc/device-tree/chosen/default-firewall; then