Add tags to baremetal cron removal tasks

In 59e29b17f4a9f5f65b6f8a7b8e82ef6426d8a51 we forgot to
add tags to the Ansible tasks to remove the baremetal
cron jobs at step 2.

Change-Id: I23fb134b88336ebc4eb1a97a69a2d73d4ef0edb2
Related-bug: #1708466

docker/services/cinder-api.yaml

@@ -194,6 +194,7 @@ outputs:
           tags: step2
           service: name=httpd state=stopped enabled=no
         - name: remove old cinder cron jobs
+          tags: step2
           file:
             path: /var/spool/cron/cinder
             state: absent

docker/services/heat-api.yaml

@@ -164,6 +164,7 @@ outputs:
           ignore_errors: True
           register: heat_api_enabled
         - name: remove old heat cron jobs
+          tags: step2
           file:
             path: /var/spool/cron/heat
             state: absent

docker/services/keystone.yaml

@@ -209,6 +209,7 @@ outputs:
           tags: step2
           service: name=httpd state=stopped enabled=no
         - name: remove old keystone cron jobs
+          tags: step2
           file:
             path: /var/spool/cron/keystone
             state: absent

docker/services/nova-api.yaml

@@ -235,6 +235,7 @@ outputs:
           tags: step2
           service: name=openstack-nova-api state=stopped enabled=no
         - name: remove old nova cron jobs
+          tags: step2
           file:
             path: /var/spool/cron/nova
             state: absent