scsi: ufs: core: Use a function to calculate versions

Update the driver to use a function for referencing the UFS version.  This
replaces the UFSHCI_VERSION_xy macros, and supports comparisons where they
did not.

Link: https://lore.kernel.org/r/20210310153215.371227-2-caleb@connolly.tech


Suggested-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Signed-off-by: Caleb Connolly <caleb@connolly.tech>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>