The notification client and service are integrated which
allows subscription and queries of GNSS, OS clock and
overall sync states.
Test plan:
PASS: GNSS state subscribe and pull
PASS: OS Clock state subscribe and pull
PASS: Overall state subscribe and pull
Story: 2010056
Task: 45996
Signed-off-by: Teresa Ho <teresa.ho@windriver.com>
Change-Id: Ifcc0c5f33a29f2f6f522d2677e4f5498b5faaf4b
b626d725e7