manifests/system-configuration: add acl

This is currently getting pulled in by systemd, but won't anymore in
f36. Let's keep shipping it though since users might be relying on it to
manage permissions.

manifests/system-configuration.yaml

@@ -24,6 +24,7 @@ packages:
   # User configuration
   - passwd
   - shadow-utils
+  - acl
   # SELinux policy
   - selinux-policy-targeted
   # There are things that write outside of the journal still (such as the