Added enable luks-fs-mgr.service to systemd preset files to enable
and start the luks-fs-mgr service during boot or restart of node.
Test Plan:
PASSED: build-pkgs -c -p systemd-presets
PASSED: build-image
PASSED: AIO-SX bootstrap
PASSED: AIO-SX sudo systemctl status luks-fs-mgr
Story: 2010872
Task: 48824
Change-Id: I496d3e4b3b85e1e8d885409779d46becf5e9688a
Signed-off-by: Rahul Roshan Kachchap <rahulroshan.kachchap@windriver.com>