On windows we can't wait on file descriptors.
Poll libusb using a timer instead.
Fixes long-standing FIXME.
Resolves: https://gitlab.com/qemu-project/qemu/-/issues/431
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-Id: <20210623085249.1151901-2-kraxel@redhat.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>