Suspend sd card reader even when mounted

Thanks to @martin.kepplinger 's patch (!160 (merged)) for sd the sd card works and hub can suspend while not mounted but it should also be able to suspend when mounted

https://lore.kernel.org/linux-scsi/20200623111018.31954-1-martin.kepplinger@puri.sm/T/#m72ef6a2fbf29957ed494fb125c8d3eb56f78e1ac

(just so we have a bug to track that as well)