We're seeing hangs in oe-selftest where server startup and shutdown are
racing. The assumption was a connect would timeout however no timeout is
set which can leave processes hanging. Set a short timeout for
the connection to avoid this.
(Bitbake rev: f02114cb70e8f6f1d32e19c02b758fe0aadecd19)
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>