Fixing docker push form fabric8io mvn plugin

Change-Id: I40ea95c162067f9d099e578fb236c5877562041b
Signed-off-by: Piotr Jaszczyk <piotr.jaszczyk@nokia.com>
Issue-ID: DCAEGEN2-601
diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 54bbacf..9c22c64 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -22,5 +22,5 @@
     - master
   script:
     - docker login $DOCKER_REPO_ADDR -u $DOCKER_REPO_USER -p $DOCKER_REPO_PASS
-    - mvn -e -DskipTests -DskipAnalysis -Ddocker.registry="$DOCKER_REPO_ADDR" deploy
+    - mvn -e -DskipTests -DskipAnalysis -Ddocker-image.registry="$DOCKER_REPO_ADDR" deploy
     - "curl -X POST -F token=$INTEGRATION_TESTS_TRIGGER_TOKEN -F ref=master https://gitlabe1.ext.net.nokia.com/api/v4/projects/33403/trigger/pipeline"