defaults: fix pre-wizard LAN IP notation

Dnsmasq requires the CIDR part since openwrt/openwrt#18641

Without this fix, dnsmasq ignores the DHCP range and doesn't hand
out IP addresses to clients.

Signed-off-by: Packet Please <[email protected]>

Author: pktpls

packages/falter-defaults/files/etc/uci-defaults/freifunk-berlin-network-defaults

@@ -6,7 +6,7 @@
 guard "network"
 
 # change default ip to avoid collision with user's local network
-uci set network.lan.ipaddr=192.168.42.1
+uci set network.lan.ipaddr=192.168.42.1/24
 
 WANDEV=$(uci -q get network.wan.device)
 echo "$WANDEV" | grep ^br- >/dev/null