Fix typos in IPA users and hosts handling

add_ipa_host.yml

 ---
-- hosts: ipa
+- hosts: all
   remote_user: root
   vars:
     # loc: 620

ipa_user.yml

 ---
-- hosts: ipa
+- hosts: all
   vars: 
   vars_prompt:
     - name: "ipa_admin_pass"

roles/ipa_users/tasks/main.yml

@@ -12,4 +12,4 @@
     uidnumber: "{{ item.uid }}"
     gidnumber: "{{ gid }}"
   with_items:
-    - "{{ ipa_user }}"
+    - "{{ ipa_users }}"