Duplicate the old opkg index.json using the new apk database.
Needed to get the ASU server working on new snapshots.
Signed-off-by: Eric Fahlgren <ericfahlgren@gmail.com>
Link: https://github.com/openwrt/openwrt/pull/16931
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>