[CPS] Fix issues in the ncmp-dmi-plugin charts

- added serviceMonitor and removed annotation for prometheus scraping
- changed readiness dependency from core-db to core app
- removed unused environment variables
- make cps-core and sdnc url configurable
- Added rolling restart in ncmp-dmi-plugin

Issue-ID: CPS-669
Signed-off-by: Renu Kumari <renu.kumari@bell.ca>
Change-Id: Ia4c3ccdac32a97d75b98ce4cbadaf74c5493f06c
7 files changed