archboxes: Fix module loading not supporting multiple modules

Signed-off-by: Florian Pritz <bluewind@xinu.at>

roles/arch-boxes/tasks/main.yml

@@ -10,7 +10,8 @@
   git: repo='https://github.com/archlinux/arch-boxes.git' dest="{{ archboxes_git_dir }}" force=yes
 
 - name: load virtualbox kernel modules
-  modprobe: name=vboxdrv,vboxnetadp,vboxnetflt state=present
+  modprobe: name="{{item}}" state=present
+  with_items: ['vboxdrv', 'vboxnetadp', 'vboxnetflt']
 
 - name: add modules-load config for virtualbox
   copy: src=virtualbox.conf dest=/etc/modules-load.d/virtualbox.conf owner=root group=root mode=0644