Switch to codeload for simplicity.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

As it currently stands, the version of coova-chilli the packages feed
will not compile against 4fd8722056

I've quasi-backported (could not find a single commit which fixes these
particular issues) https://github.com/coova/coova-chilli 's formatting
on the impacted sections, and it compiles.

Once a new version is added to the feed this patch can likely be
dropped.

Signed-off-by: Marty E. Plummer <hanetzer@startmail.com>

Signed-off-by: Jaehoon You <teslamint@gmail.com>

Signed-off-by: Jaehoon You <teslamint@gmail.com>

Signed-off-by: Jaehoon You <teslamint@gmail.com>

Signed-off-by: Imre Kaloz <kaloz@openwrt.org>