Fix add repositories in RedHat and Suse

These tasks should be used with become like Debian.yaml, otherwise
error will occurred like this:
[Errno 13] Permission denied: '/etc/yum.repos.d/test.repo'

Change-Id: I9c6f0132536500d36ba0098b635b1858e05d7ccf

roles/ensure-package-repositories/tasks/RedHat.yaml

@@ -30,6 +30,7 @@
     path: '{{ gpg_key_tempdir.path }}'
 
 - name: Add repositories
+  become: true
   yum_repository:
     name: "{{ zj_item['name'] }}"
     file: "{{ zj_item['file'] | default(zj_item['name']) }}"

roles/ensure-package-repositories/tasks/Suse.yaml

@@ -30,6 +30,7 @@
     path: '{{ gpg_key_tempdir.path }}'
 
 - name: Add repositories
+  become: true
   zypper_repository:
     name: "{{ zj_item['name'] }}"
     description: "{{ zj_item['description'] | default(omit) }}"