AppArmor: add mount rules needed with additional mediation features brought by Linux 4.14

This set of rules was proposed by Christian Boltz <apparmor@cboltz.de>
on https://bugzilla.opensuse.org/show_bug.cgi?id=1065123.

examples/apparmor/usr.sbin.libvirtd

@@ -30,6 +30,21 @@
   # Needed for vfio
   capability sys_resource,
 
+  mount options=(rw,rslave)  -> /,
+  mount options=(rw, nosuid) -> /{var/,}run/libvirt/qemu/*.dev/,
+
+  mount options=(rw, move) /dev/           -> /{var/,}run/libvirt/qemu/*.dev/,
+  mount options=(rw, move) /dev/hugepages/ -> /{var/,}run/libvirt/qemu/*.hugepages/,
+  mount options=(rw, move) /dev/mqueue/    -> /{var/,}run/libvirt/qemu/*.mqueue/,
+  mount options=(rw, move) /dev/pts/       -> /{var/,}run/libvirt/qemu/*.pts/,
+  mount options=(rw, move) /dev/shm/       -> /{var/,}run/libvirt/qemu/*.shm/,
+
+  mount options=(rw, move) /{var/,}run/libvirt/qemu/*.dev/       -> /dev/,
+  mount options=(rw, move) /{var/,}run/libvirt/qemu/*.hugepages/ -> /dev/hugepages/,
+  mount options=(rw, move) /{var/,}run/libvirt/qemu/*.mqueue/    -> /dev/mqueue/,
+  mount options=(rw, move) /{var/,}run/libvirt/qemu/*.pts/       -> /dev/pts/,
+  mount options=(rw, move) /{var/,}run/libvirt/qemu/*.shm/       -> /dev/shm/,
+
   network inet stream,
   network inet dgram,
   network inet6 stream,