scsi: ufs: core: Add enums for UFS lanes

Since there are enums available for UFS gears, let's add enums for lanes as
well to maintain uniformity.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20230731145020.41262-2-manivannan.sadhasivam@linaro.org


Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>