[libvirt] [patch] Add support for OVMF in virt-aa-helper [Was: [apparmor] virt-aa-helper: does not support OVMF?]

Hi, [please Cc me any reply, I'm not subscribed to libvir-list.] it was reported [1] to Ubuntu that virt-aa-helper blocks access to the OVMF files needed to boot UEFI virtual machines in QEMU. After I've confirmed that on Debian sid, Jamie Strandboge suggested a fix. I've successfully tested in my environment (applied on top of 1.2.18) so I'm forwarding it here. [1] https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1483071 Cheers, -- intrigeri