default-providers: Change update-alternatives provider to opkg-utils
This allows dependencies to be added to the opkg recipe without causing circular
dependency loops. As opkg-utils has minimal dependencies it is the best recipe
to provide update-alternatives.
This partially solves Yocto Project issue 4836. More work is still needed for a
complete solution.
Signed-off-by: Paul Barker <paul@paulbarker.me.uk> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
