Disable the ntp service when bootstrap-servers

since we use chrony container to adjust time by default, we no need
to enable ntp service, this ps to disable it.

Change-Id: I2f1fd9269c9f8cfd0c98e0e903ba69de692473a0

ansible/roles/baremetal/defaults/main.yml

@@ -14,7 +14,7 @@ create_kolla_user_sudoers: "{{ create_kolla_user }}"
 kolla_user: "kolla"
 kolla_group: "kolla"
 
-enable_host_ntp: True
+enable_host_ntp: False
 
 change_selinux: True
 

releasenotes/notes/disable-ntp-service-fdcaj9daa5169b06.yaml

+---
+upgrade:
+  - |
+    Disable ntp service as kolla use chrony container by default.