The qemu-system package, and not qemu-kvm, should be installed on either
trusty- or utopic-based ARMv8 (aarch64) Ubuntu releases. Additionally,
libguestfs is not available so that is not installed.
No changes are required for vivid.
Change-Id: Id9dc1fc465bd7acab17c991c292fb531016758ad
Signed-off-by: Andrew McDermott <andrew.mcdermott@linaro.org>