koordlet: add NRI reconnect #7715

Job	Run time
golangci-lint	5m 56s
unit-tests(Check Go modules)	44s
unit-tests(Check manifests)	1m 8s
unit-tests(Check auto-generated codes)	4m 30s
unit-tests(Verify gofmt)	33s
unit-tests(Verify govet)	1m 1s
unit-tests(Run Go build)	2m 6s
unit-tests(Run Go test)	4m 35s
build-and-push (koordlet)	3m 43s
build-and-push (koord-manager)	2m 43s
build-and-push (koord-scheduler)	3m 6s
build-and-push (koord-descheduler)	3m 21s
	33m 26s

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