Fix following checkincludes warning:

drivers/scsi/ufs/ufshcd.c: linux/nls.h is included more than once.

The include is in line 14. Remove the duplicate.

Link: https://lore.kernel.org/r/20220426104509.621394-1-wanjiabing@vivo.comReviewed-by: Avri Altman <avri.altman@wdc.com>
Signed-off-by: Wan Jiabing <wanjiabing@vivo.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>