Add leading v for remaining IMAGE_VERSION templates.

roles/openshift_master/templates/native-cluster/atomic-openshift-master-api.j2

@@ -1,7 +1,7 @@
 OPTIONS=--loglevel={{ openshift.master.debug_level }} --listen={{ 'https' if openshift.master.api_use_ssl else 'http' }}://{{ openshift.master.bind_addr }}:{{ openshift.master.api_port }} --master={{ openshift.master.loopback_api_url }}
 CONFIG_FILE={{ openshift_master_config_file }}
 {% if openshift.common.is_containerized | bool %}
-IMAGE_VERSION={{ openshift_version }}
+IMAGE_VERSION=v{{ openshift_version }}
 {% endif %}
 
 {% if 'cloudprovider' in openshift and 'aws' in openshift.cloudprovider and 'kind' in openshift.cloudprovider and openshift.cloudprovider.kind == 'aws' and 'access_key' in openshift.cloudprovider.aws and 'secret_key' in openshift.cloudprovider.aws %}

roles/openshift_master/templates/native-cluster/atomic-openshift-master-controllers.j2

@@ -1,7 +1,7 @@
 OPTIONS=--loglevel={{ openshift.master.debug_level }} --listen={{ 'https' if openshift.master.api_use_ssl else 'http' }}://{{ openshift.master.bind_addr }}:{{ openshift.master.controllers_port }}
 CONFIG_FILE={{ openshift_master_config_file }}
 {% if openshift.common.is_containerized | bool %}
-IMAGE_VERSION={{ openshift_version }}
+IMAGE_VERSION=v{{ openshift_version }}
 {% endif %}
 
 {% if 'cloudprovider' in openshift and 'aws' in openshift.cloudprovider and 'kind' in openshift.cloudprovider and openshift.cloudprovider.kind == 'aws' and 'access_key' in openshift.cloudprovider.aws and 'secret_key' in openshift.cloudprovider.aws %}