scsi: sd: Switch to using scsi_device VPD pages

Use the VPD pages already provided by the SCSI midlayer. No need to request
them individually in the SCSI disk driver.

Link: https://lore.kernel.org/r/20220302053559.32147-8-martin.petersen@oracle.com
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>