libqos: add alloc_init_flags Allow a generic interface to alloc_init_flags, not just through pc_alloc_init_flags. Signed-off-by: John Snow <jsnow@redhat.com> Reviewed-by: Paolo Bonzini <pbonzini@redhat.com> Message-id: 1421698563-6977-6-git-send-email-jsnow@redhat.com Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>