devconfig: add a default for kdevops_enable_terraform

The devconfig playbook depends on this now.

Fixes: 7710a1e ("devconfig: Remove "dnf update" optimizations for terraform hosts")
Reviewed-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Jeff Layton <jlayton@kernel.org>

Author: jtlayton

playbooks/roles/devconfig/defaults/main.yml

@@ -59,3 +59,4 @@ distro_debian_has_hop1_sources: false
 unattended_upgrades_installed: false
 workflow_infer_user_and_group: false
 kdevops_use_declared_hosts: false
+kdevops_enable_terraform: false