[libata] Add support for VPD page b1
SCSI VPD page b1 reports the nominal rotation speed and physical size of the device. Devices that conform to ATA-8 can return this information in words 217 and 168 of the identify data. Signed-off-by: NMatthew Wilcox <willy@linux.intel.com> Signed-off-by: NJeff Garzik <jgarzik@redhat.com>
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