A directory is created under dataDirHostPath for each OSD. In host-based cluster,
its name is constructed from kernel device name like _dev_sdb though user specifies
udev persistent device name. We should use unique name among all OSDs.
Closes: https://github.com/rook/rook/issues/7878
Signed-off-by: Satoru Takeuchi <satoru.takeuchi@gmail.com>