Parametrize mcp_docker_registry host

Related-Bug: PROD-22480 (PROD:22480)

Change-Id: I36ad55a1960f6c8e025d9c967bbc7658927fc872
diff --git a/docker/swarm/stack/security_monkey.yml b/docker/swarm/stack/security_monkey.yml
index 2f844c0..2c46878 100644
--- a/docker/swarm/stack/security_monkey.yml
+++ b/docker/swarm/stack/security_monkey.yml
@@ -1,11 +1,12 @@
 parameters:
   _param:
+    mcp_docker_registry: 'docker-prod-local.artifactory.mirantis.com'
     docker_security_monkey_api_replicas: 1
     docker_security_monkey_scheduler_replicas: 1
     secmonkey_login_id: 11
     secmonkey_application_id: 1
-    docker_image_security_monkey_api: docker-prod-local.artifactory.mirantis.com/mirantis/oss/security-monkey-api
-    docker_image_security_monkey_scheduler: docker-prod-local.artifactory.mirantis.com/mirantis/oss/security-monkey-scheduler
+    docker_image_security_monkey_api: ${_param:mcp_docker_registry}/mirantis/oss/security-monkey-api
+    docker_image_security_monkey_scheduler: ${_param:mcp_docker_registry}/mirantis/oss/security-monkey-scheduler
     security_monkey_bind_host: security-audit-api
     security_monkey_bind_port: ${_param:haproxy_security_monkey_bind_port}
     security_monkey_ssl: