uapi: virtio_ids.h: consistent indentions

Fixing the differing indentions to be consistent and properly aligned.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
Link: https://lore.kernel.org/r/20201202111931.31953-1-info@metux.net


Signed-off-by: Michael S. Tsirkin <mst@redhat.com>