Reduce startup_timeout to 120sec as documented
man(5) default.conf says that startup_timeout has a default value of 120
seconds. Even 120 seconds are not effective unless systemd is also
reconfigured to have a larger DefaultTimeoutStartSec.
Signed-off-by: Christian Heimes <cheimes@redhat.com>
Reviewed-By: Alexander Bokovoy <abokovoy@redhat.com>