qmp: Fix a typo for a USO feature

There is a copy & paste error, USO6 should be there.

Fixes: 58f81689789f ("qmp: update virtio feature maps, vhost-user-gpio introspection")
Signed-off-by: Jack Wang <jinpu.wang@ionos.com>
Reviewed-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
1 file changed