Podman machine is only intended for amd64 and arm64 architectures, set
the correct buildtags so that the `pkg/machine`, `pkg/machine/qemu` and
`pkg/machine/libvirt` packages compile correctly.
[NO TESTS NEEDED]
Fixes#10625
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
Paul Holzinger