overlay.d/05core: Update CLHM presets

Add (back) preset for CLHM-{issuegen,motdgen}.service. This is
required for CLHM v0.2. v0.2 is required for CLHM to work properly
on F33. coreos/fedora-coreos-tracker#631

overlay.d/05core/usr/lib/systemd/system-preset/40-coreos.preset

@@ -1,6 +1,8 @@
 # Presets here that eventually should live in the generic fedora presets
 enable coreos-growpart.service
 # console-login-helper-messages - https://github.com/coreos/console-login-helper-messages
+enable console-login-helper-messages-issuegen.service
+enable console-login-helper-messages-motdgen.service
 enable console-login-helper-messages-issuegen.path
 enable console-login-helper-messages-motdgen.path
 enable console-login-helper-messages-gensnippet-os-release.service