scsi: ufs: core: Remove duplicate include in ufshcd

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>

drivers/scsi/ufs/ufshcd.c

@@ -20,7 +20,6 @@
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/module.h>
-#include <linux/nls.h>
 #include <linux/regulator/consumer.h>
 #include <scsi/scsi_cmnd.h>
 #include <scsi/scsi_dbg.h>