hw/virtio: fix typo in VIRTIO_CONFIG_IRQ_IDX comments Fixes: 544f0278af (virtio: introduce macro VIRTIO_CONFIG_IRQ_IDX) Signed-off-by: Alex Bennée <alex.bennee@linaro.org> Message-Id: <20230710153522.3469097-4-alex.bennee@linaro.org> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>