let FETCHCMD_* settings be passed to upstream check functions from
get_recipe_upgrade_status. It enables using different values for
the fetching tools, as otherwise always the defaults are used.
E.g. use different timeout or retry values for wget.
This is especially useful for remote server that do request-limiting (429)
or that are simply unavailable (500, 504) and can speedup upgrade-check
for a larger set of recipe significantly
Signed-off-by: Konrad Weihmann <kweihmann@outlook.com> Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
