teamd: lw: add implicit link watch if none is specified in config

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
teamd: json: check for type of existing object

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
teamd: add possibility to append string to config array

Signed-off-by: Jiri Pirko <jiri@resnulli.us>
teamd: hash_func: use default frags in case they are not specified

Signed-off-by: Jiri Pirko <jiri@resnulli.us>