[fuel, armband] Disable aarch64 verify jobs

[fuel, armband] Disable aarch64 verify jobs

Our hardware does not support nested virtualization on aarch64, so
our verify jobs cannot run any real tests that require spawning VMs
on a virtual POD, where all verify jobs were previously scheduled.

So all aarch64 verify jobs used to be limited to checking that the
Armband patches apply cleanly on top of OPNFV Fuel. Now that all
Armband patches are upstream in OPNFV Fuel, the verify jobs became
more or less a no-op, so let's just disable them.

Change-Id: Ibe86f58978c961e221c90ccb8b2666598981f464
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>