Recent changes in the system application framework have resulted in
ptp-notification failing to apply. This is because the plugin defined in
python3-k8sapp-ptp-notification does not exactly match the app name.
This change re-names the ptp-plugin from "ptp_notification" to
"ptp-notification" and allows the application to apply correctly.
It also adds required constances and a get_overrides() function to the
ptp-notification plugin so that helm overrides can work properly. This
logic has been implmented in the same way as other stx platform apps.
The app framework change that revealed this issue is:
https://review.opendev.org/c/starlingx/config/+/915377
Test-plan:
Pass: Verify ptp-notification build
Pass: Build and install iso
Pass: Verify ptp-notification app apply/remove/override
Story: 2011090
Task: 50183
Signed-off-by: Cole Walker <cole.walker@windriver.com>
Change-Id: Ia366eeb4c54aaccea65a9e568afaf8992bd825d5
750a2f41c2