Three fixes:
1. Handle a case where the ptp_montor would fail if ptp4l/phc2sys were
restarted while ptp-notification is running
2. Correct the logic for determining if the local node is a GM. There
was a case where the node was declared a GM if the upstream GM went
down, even though local ports were configured not to become master.
3. Correct an issue where the ptp sync state was not set properly on
startup and could not transition out of Freerun
Test plan:
PASS: Build and deploy new container image
PASS: PTP state reaches freerun when upstream GM goes down
PASS: ptp-notification continues running and resumes monitoring ptp4l
state after ptp4l/phc2sys service restart on host
Story: 2010056
Task: 46376
Task: 46377
Task: 46378
Signed-off-by: Cole Walker <cole.walker@windriver.com>
Change-Id: I3ac29fc56f9e72efc5b6ef02fa5472d9d801fbb7
87d19911a4