haveged: Add epel as requirement & small cleanup

This adds the missing dependency on the epel role and cleans up some messages / the README.

roles/haveged/README.md

@@ -16,7 +16,7 @@ None
 Dependencies
 ------------
 
-None
+- epel
 
 License
 -------

roles/haveged/meta/main.yml

@@ -1,17 +1,15 @@
 galaxy_info:
   author: saibotk
-  description: This role installs the haveged package and starts the systemd service.
+  description: Installs the haveged package and starts the systemd service.
   license: GPL-3.0-only
   min_ansible_version: 2.9
 
   platforms:
-    - name: Fedora
-      versions:
-        - 32
     - name: CentOS
       versions:
         - 7
 
   galaxy_tags: []
 
-dependencies: []
+dependencies:
+  - epel

roles/haveged/tasks/main.yml

@@ -24,7 +24,7 @@
     state: latest
   become: true
 
-- name: Enable haveged systemd service
+- name: Enable & start haveged systemd service
   service:
     state: started
     name: haveged