Move automatic updates by default from tier-0 to tier-1

tier-1 is more opinionated and automatic updates by default is
definitely a very strong opinion.

This makes it easier to inherit from tier-0 without having to undo that
knob if it's not desirable.

Prep for !48.

tier-0/manifest.yaml

@@ -50,7 +50,6 @@ include:
   - bootupd.yaml
   - ostree.yaml
   - initramfs.yaml
-  - autoupdates.yaml
   - basic-fixes.yaml
 
 packages:

tier-1/manifest.yaml

@@ -3,6 +3,7 @@ recommends: true
 
 include:
   - ../tier-0/manifest.yaml
+  - autoupdates.yaml
   - bootable-rpm-ostree.yaml
   - podman.yaml
   - firmware.yaml