This change updated kickstart to create a .first_controller flag.
This flag will be checked by controller_config to skip IPSec config
and enablement for the very first controller. IPSec is configured and
enabled by ansible bootstrap for the first controller.
Test Plan:
PASS: Install a AIO-DX system, verify the .first_controller file flag
is created for the first controller during kickstart, but not for
the other controller.
PASS: Verify that IPSec config and enablement is skipped for first
controller and IPSec is configured and enabled for the second
controller.
Story: 2010940
Task: 49547
Change-Id: Iea78885483a358dc3d8a296312c0a40c431b7ea5
Signed-off-by: Andy Ning <andy.ning@windriver.com>