Modified ntp-config to add support for Debian packaging.
Note: ntp has not yet been patched to debian and
the upstream package conflicts with systemd-timesyncd.
Test Plan:
PASS: Package installed without the dependency
on ntp and ISO built successfully.
Story: 2009256
Task: 43508
Change-Id: I8f4d4e09b39d54a6e86388cd4859322d9aba6966
Signed-off-by: Matheus Machado Guilhermino <Matheus.MachadoGuilhermino@windriver.com>