[connman] Compatibility with contextkit

NetworkType and NetworkState should be backward compatible with
contextkit properties to avoi changes in ported code

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>
[inout] location

Andn placeholder for location-geoclue provider

Signed-off-by: Denis Zalevskiy <denis.zalevskiy@jolla.com>