Allows other time sync daemons to be installed such as NTP
to be installed in order to fix the ISO build.
Test Plan:
PASS Build systemd with applied patch
PASS Build ISO with updated systemd
Story: 2009221
Task: 43416
Signed-off-by: Charles Short <charles.short@windriver.com>
Change-Id: I76b27b72cc947bf5480b149fef2f3c09657b92c3
8dbdc40fe1