>From upstream:
Turning on ECN still causes slow or broken network on linux. Our tcp
is not yet ready for wide spread use of ECN.
https://github.com/systemd/systemd/issues/9748
(From OE-Core rev: f951aa6f9fcf318f108ecdc3371498ee2e919e68)
Signed-off-by: Alex Kiernan <alex.kiernan@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>