The image for NSM should be uploaded to Kna region

Please refer:
https://gerrit.nordix.org/gitweb?p=infra/tools.git;a=blob;f=infra/jenkins/slave-setup/nordix-nsm-build-server/nordix-nsm-build-server-ubuntu1804-kna.json

Change-Id: I711ddb565013c1b93eaab43491ead3e5ba87a592
diff --git a/jjb/infra/packer_build_jobs.yaml b/jjb/infra/packer_build_jobs.yaml
index 758aa93..f298f29 100644
--- a/jjb/infra/packer_build_jobs.yaml
+++ b/jjb/infra/packer_build_jobs.yaml
@@ -34,7 +34,7 @@
       - 'nordix-nsm-build-server':
            image: 'nordix-nsm-build-ubuntu1804'
            openstack-project: 'CICD'
-           region: 'fra'
+           region: 'kna'
       - 'uds-build-server':
            image: 'onap-uds-build-ubuntu1804'
            openstack-project: 'CICD'