Fix the install check of the EL related tasks.

tasks/ntp-el.yml

@@ -1,5 +1,9 @@
 ---
 - name: ntp-el | Manage the NTP service in the EL distributions
+  when:
+    - ansible_distribution_major_version is version_compare('7', '<=')
+    - ntp_service_enabled
+  tags: [ 'packages', 'ntp' ]
   block:
   - name: ntp-el | Install the ntpd server on CentOS <= 7
     yum: pkg=ntp state=present
@@ -23,19 +27,14 @@
     when: firewalld_enabled
     tags: [ 'packages', 'ntp', 'firewall', 'iptables_rules' ]
 
-  when:
-    - ansible_distribution_major_version is version_compare('7', '<=')
-    - ntp_service_install
-  tags: [ 'packages', 'ntp' ]
-
 - name: ntp-el | Manage the NTP service in the EL distributions
+  when:
+    - ansible_distribution_major_version is version_compare('8', '>=')
+    - ntp_service_enabled
+  tags: [ 'packages', 'ntp' ]
   block:
   - name: ntp-el |Install the Chrony server on CentOS >= 8
     ansible.builtin.dnf:
       pkg: chrony
       state: present
 
-  when:
-    - ansible_distribution_major_version is version_compare('8', '>=')
-    - ntp_service_install
-  tags: [ 'packages', 'ntp' ]