p/reclass-system: Add Pike repos for Queens

p/reclass-system: Add Pike repos for Queens

Until Mirantis Queens repositories get populated with all required
arm64 binaries, add Pike repositories for filling in missing deps.

While at it, remove Nova patches meanwhile upstreamed/obsoleted:
- Add video type virtio for AArch64
- libvirt driver: AArch64: ACPI depends on AAVMF (superseded by [1])

Bump Fuel@OPNFV git submodule to include compute discovery.

[1] https://github.com/openstack/nova/commit/6f54f5c1e

Change-Id: I85429fd211cd7eadaec1419d0213182ade50f7ed
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>