rpcd-mod-luci: handle lease files from all dnsmasq/odhcpd sections
rpcd-mod-luci: handle lease files from all dnsmasq/odhcpd sections

Fixes: #911, #4303, #4308
Signed-off-by: Jo-Philipp Wich <bd73d35759d75cc215150d1bbc94f1b1078bee01@mein.io>

lbthomsen/openwrt-luci,lbthomsen/openwrt-luci,hnyman/luci,hnyman/luci,hnyman/luci,openwrt/luci,lbthomsen/openwrt-luci,lbthomsen/openwrt-luci,hnyman/luci,openwrt/luci,openwrt/luci,openwrt/luci,openwrt/luci,openwrt/luci,lbthomsen/openwrt-luci,lbthomsen/openwrt-luci,hnyman/luci,openwrt/luci,hnyman/luci,lbthomsen/openwrt-luci,lbthomsen/openwrt-luci,openwrt/luci,hnyman/luci,hnyman/luci