simetbox-openwrt-feed: simetbox-openwrt-base: depend on libuci-lua

simetbox-openwrt-feed: simetbox-openwrt-base: depend on libuci-lua

simetbox-openwrt-base's crontab_writer needs libuci-lua.  Add that as
a dependency.

Closes: https://github.com/simetnicbr/simetbox-openwrt-feed/issues/20