The run_ssh option was renamed to the run_validation option multiple
releases ago[1]. Rename the parameter to use the consistent name.
Also the option defaults to false, so the explicit default value can
be replaced by service default.
[1] e5cca002ef4a4fa72108ec2af102ae69f873c3aa
Change-Id: Ief044e32b03f915c72caf1bba0f80d709e24e129
Signed-off-by: Takashi Kajinami <kajinamit@oss.nttdata.com>