[cloud-init] (5 commits) ...Refresh patches

[gholms]

Summary of changes:

  a2171c6... Consolidate selinux file context patches (*)
  56f9947... Fix cloud-init.service dependencies (*)
  f354744... Update sshkeytypes patch (*)
  974de09... Deal with differences from Ubuntu's sshd (*)
  1a48e76... Refresh patches (*)

(*) This commit already existed in another branch; no separate mail sent