The cross-i386-tci test has timeouts because we're no longer
applying the timeout that we desired.  Hack around it.

Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Fixes: 23a77b2d ("build-system: clean up TCG/TCI configury")
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>