Add ability to enable ucp audit logs

Allow to configure audit logs, by default - level is "" - means
disabled. More details https://docs.mirantis.com/mke/3.7/ops/administer-cluster/mke-audit-logging/logging-levels.html
All logs are written to ucp-controller container log. Which is rotated
currently as follows - 3 log files at 1Gb each.

Related-Prod: https://mirantis.jira.com/browse/PRODX-44797
Change-Id: Ib73b30cf874ae119aef8842ea797de42e50b9a40
diff --git a/de/heat-templates/scripts/launch.sh b/de/heat-templates/scripts/launch.sh
index 5a89193..21bd205 100644
--- a/de/heat-templates/scripts/launch.sh
+++ b/de/heat-templates/scripts/launch.sh
@@ -42,6 +42,7 @@
 DOCKER_UCP_IMAGE=${DOCKER_UCP_IMAGE:-$docker_ucp_image}
 BINARY_BASE_URL=${BINARY_BASE_URL:-$binary_base_url}
 UCP_DOCKER_SWARM_DATA_PORT=${UCP_DOCKER_SWARM_DATA_PORT:-$docker_ucp_swarm_data_port}
+UCP_AUDIT_LOG_LEVEL=${UCP_AUDIT_LOG_LEVEL:-$ucp_audit_log_level}
 FLOATING_NETWORK_PREFIXES=${FLOATING_NETWORK_PREFIXES:-$private_floating_network_cidr}
 IRONIC_MT_ENABLED=${IRONIC_MT_ENABLED:-$ironic_mt_enabled}