scsi: ufs: core: Add a compile-time structure size check

Before modifying struct ufshcd_sg_entry, add a compile-time structure size
check.

Link: https://lore.kernel.org/r/20211020214024.2007615-10-bvanassche@acm.org


Acked-by: Avri Altman <Avri.Altman@wdc.com>
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>