aarch64: Pin qemu-efi from Armband repos
Upstream (UCA) qemu-efi (AAVMF) package is incompatible
with most cloud images, e.g. Cirros used by Functest,
resulting in kernel boot issues and/or missing serial console
output.
Work around this by pinning the qemu-efi Debian package from
the old Armband repositories. This should fix singlevm1 functest
testcase.
Change-Id: Ibbe2218d99881f6fec89846497c2cc248aab5031
Signed-off-by: Alexandru Avadanii <Alexandru.Avadanii@enea.com>
(cherry picked from commit
73656638216987cc4e9c75468182f16b82cce5d1)